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Animal captivity is the confinement of domestic and wild animals. [1] More specifically, animals that are held by humans and prevented from escaping are said to be in captivity. [2] The term animal captivity is usually applied to wild animals that are held in confinement, but this term may also be used generally to describe the keeping of domesticated animals such as livestock or pets. This may include, for example, animals in farms, private homes, zoos, and laboratories. Animal captivity may be categorized according to the particular motives, objectives, and conditions of the confinement.
All throughout history, domestic animals like pets and livestock were kept in captivity and tended by humans. However, pets and livestock were not the only animals to be put in captivity and receive human care because wild animals had this as well. Despite the fact that wild animals have been harbored by humans for thousands of years, this captivity has not always come close to present zoos. Some were failed domestication attempts. Furthermore, the wealthy, predominantly the aristocrats and kings, collected wild animals for various reasons. The affluent built the first zoos as personal collections to demonstrate their dominance and wealth. These private collections of animals were known as menageries. Contrary to domestication, the ferociousness and natural behaviour of the wild animals were preserved and exhibited. Today, zoos claim to have other reasons for keeping animals under human care: conservation, education and science.
Captive animals, especially those not domesticated, sometimes can develop abnormal behaviours.
One type of abnormal behaviour is stereotypical behaviors , i.e. repetitive and apparently purposeless motor behaviors. Examples of stereotypical behaviours include pacing, self-injury, route tracing and excessive self-grooming. These behaviors are associated with stress and lack of stimulation. Animals that exhibit this tend to suffer from zoochosis, as it is manifested in stereotypical behaviors. [3]
Many who keep animals in captivity attempt to prevent or decrease stereotypical behavior by introducing stimuli, a process known as environmental enrichment. The goals of environmental enrichment are to make environments more complex and fluid, offer more engaging and complex processes, and give animals more chances to make decisions. Techniques that are commonly used to provide environmental enrichment include social, occupation, physical, sensory, and nutritional. [4]
Another type of abnormal behavior shown in captive animals is self-injurious behavior (SIB). Self-injurious behavior indicates any activity that involves biting, scratching, hitting, hair plucking, or eye poke that may result in injuring oneself. [5] Although its reported incidence is low, self-injurious behavior is observed across a range of primate species, especially when they experience social isolation in infancy. [6] Self-bite involves biting one's own body—typically the arms, legs, shoulders, or genitals. Threat bite involves biting one's own body—typically the hand, wrist, or forearm—while staring at the observer, conspecific, or mirror in a threatening manner. Self-hit involves striking oneself on any part of the body. Eye poking is a behavior (widely observed in primates) that presses the knuckle or finger into the orbital space above the eye socket. Hair plucking is a jerking motion applied to one's own hair with hands or teeth, thus resulting in its excessive removal. [5]
The proximal causes of self-injurious behavior have been widely studied in captive primates; either social or nonsocial factors can trigger this type of behavior. Social factors include changes in group composition, stress, separation from the group, approaches by or aggression from members of other groups, conspecific male individuals nearby, separation from females, and removal from the group. [6] Social isolation, particularly disruptions of early mother-rearing experiences, is an important risk factor. [5] Studies have suggested that, although mother-reared rhesus macaques still exhibit some self-injurious behaviors, [7] nursery-reared rhesus macaques are much more likely to self-abuse than mother-reared ones. [5]
Nonsocial factors include the presence of a small cut, a wound or irritant, cold weather, human contact, and frequent zoo visitors. [6] For example, a study has shown that zoo visitors density positively correlates with the number of gorillas banging on the barrier, and that low zoo visitors density caused gorillas to behave in a more relaxed way. Captive animals often cannot escape the attention and disruption caused by the general public, and the stress resulting from this lack of environmental control may lead to an increased rate of self-injurious behaviors. [8]
There are studies that suggest the many abnormal captive behaviors, including self-injurious behavior, can be successfully treated by pair housing. Pair housing provides a previously single-housed animal with a same-sex social partner. [9] This method is especially effective with primates, which are widely known to be social animals. [10] Social companionship provided by pair housing encourages social interaction, thus reducing abnormal and anxiety-related behavior in captive animals as well as increasing their locomotion. [9]
Wild animals may be placed in captivity for conservation, studies, exotic pet trade, and farming. [11] Places of captivity that are connected with the AZA, (Association of Zoos and Aquariums), may hold animals’ captive as a means to save them from extinction. For example, the AZA SAFE, (Save Animals From Extinction), promotes well-being and care of animals, conservation, and additional disciplines in order to protect and aid the wildlife. The organization focuses on creating recovery plans, cooperation between AZA workers, and advancement of conservation. Furthermore, the AZA and the zoos and aquariums accredited with the AZA use the help of educators, veterinarians, and people doing research. With their assistance, zoos and aquariums are able to have the proper necessities needed in recovery programs to prevent animals from going extinct. [12]
Annually, it is subjected that thousands of wild animals end up in captivity due to the wild animal trade. These animals can be held in captivity because of the overabundance of their population in roadside zoos. Additional reasons as to why animals may end up in captivity is because animals are captured from their original habitat, come from animal breeders, or come from the black market. When wild animals are captured and held in captivity, then they may be sold in pet stores, auction sales, or the World Wide Web. [13]
Zoos are known as a place where visitors come in to see wild animals. [14] This means zoos may keep animals in confinement. For example, zoos may keep animals captive as a means to save them from going extinct. More specifically, in 2020 the Science Advances published a study where they concluded that the work and population of human beings has affected the growth of animals going extinct around the world. The uproar of animals going extinct has caused zoos to use their captive breeding programs on endangered animals in an effort to create a stronger population. It is said that zoos are responsible for reducing the number of animals on the endangered species list and from extinction. [15] [16]
Zoos could also be known as a place where animals are put into after they are taken out of their natural habitat. When animals are pulled out from their native habitat and taken to a location they are unfamiliar with, then it is said that animals may experience shock and poor mental health. Furthermore, some wild animals have died inside zoos due to the shock of being placed in an unknown setting. To be more specific, this can also mean that taking animals away from their native habitat can possibly disrupt their way of living.[ citation needed ]
Name of animal and classification[ citation needed ] | Animal description | Lifespan in the wild | Lifespan in captivity | Photo of animal |
---|---|---|---|---|
Alligators | The American alligators are considered to be crocodilians. Alligators may grow taller than 12 feet and weigh around 1,000 pounds (454 kg). This creature may be found in the southeastern area of the United States. [17] More specifically, places such as Florida, Southern Virginia Border, Rio Grande (Texas), and west of the Gulf Coast. Alligators live in areas such as lakes, rivers, swamps, and wetlands. Furthermore, alligators' bodies are covered with scutes (scales) or osteoderms (bone skin) [18] [19] | 35–50 years | 65–80 years [20] | |
Bears
| Bears come in all different shapes and sizes due to where they live and how much food they have in their environment. [21] For example, the panda can weigh around 300 pounds (136 kg) [22] and the male polar bear can weigh from 550-1700 pounds (249 to 771 kg). [23] The range of bear heights can go from the panda who can be 4 feet tall [24] to the polar bear who can be up to 11 feet tall. [25] | 20–30 years | Around 40 years [26] | |
Cougars
| Cougars are considered to be mountain lions or pumas. The cougars' appearance is said to look like a larger version of a cat. The adult male cougar may weigh 200 pounds (91 kg) and the adult female may weigh 120 pounds (54 kg). [27] The range of length for an adult cougar is said to be from 42 to 54 inches, including the tail that is 3 feet long. [28] | Around 12 years | Up to 20 years [29] | |
Chimpanzees
| Chimpanzees are said to be social animals and their habitat is in the forests of Central Africa. [30] In terms of appearance, chimpanzees have long black or brown hair that covers their body. [31] Additionally, chimpanzees can be 3 feet tall. The females may weigh from 70 to 100 pounds (32 to 45 kg) and the males may weigh from 90 to 120 pounds (41 to 54 kg). | About 33 years [32] | 31.7 years for males and 38.7 years for females [33] | |
Lions
| Lions are considered to be muscular and have broad bodies. In terms of their appearance, male lions have a mane of hair that surrounds the neck area. Lions also tend to have a yellow to gold coat. Additionally, male lions tend to be 10 feet in length and weigh around 330 to 550 pounds (150 kg to 249 kg). On the other hand, female lions, also known as lionesses, [34] tend to be 9 feet in length and weigh between 265 and 395 pounds (120 kg to 179). [35] [36] Moreover, lions can be found in continents such as Africa, Asia, and Europe. More specifically, lions live in places such as Benin, Botswana, Cameroon, India, Kenya, Mozambique, Namibia, South Africa, Tanzania, and Zambia. [37] | 12 to 16 years | Around 25 years [38] | |
Ocelots
| Ocelots are medium-sized animals. They have golden brown to silver colored fur as well as brown and black spots. Also, ocelots have stripes that starts at the inner edges of their eyes. Without the tail, ocelots are 3 feet long and weigh about 30 pounds (14 kg). This animal can be found in Arizona, Southern Texas and Northern Argentina. Furthermore, ocelots are night time animals. This is because they rest during the day and hunt during the night. [39] [40] [41] | About 12 years | Around 20 years [42] | |
Servals
| Servals, a slender wild cat, has stripes and spots on its body. Serval can be small to medium-sized in length. To be more specific, this animal is approximately between 1 and 2 meters long. In terms of weight, Servals weigh around 20 to 40 pounds (9 to 19 kg). [43] This animal lives close to the savannas in the central and south area of Africa. More specifically, servals live where there are rivers and streams. [44] | 10 to 12 years | Up to 20 years and higher [45] | |
Tigers
| Tigers have many subspecies and are known as one of the largest cats in the world. More specifically, Amur tigers are 10 feet long and weigh around 660 pounds (300 kg). In contrast, the Sumatran tigers, the smaller subspecies of tigers, are about 8 feet long and weigh around 310 pounds (141 kg). The female tigers for every subspecies are stated to be smaller in size and lighter in weight compared to the males. Furthermore, tigers may be found in South and Southeast Asia, Eastern Russia, and China. [46] | 10 to 25 years | Up to 20 years [47] | |
Wolves
| There are different subspecies of wolves such as grey, timer, or canines. In terms of looks, the grey wolves stated to look similar to the German shepherd. In terms of sizes, where they live impacts how big or small they are. For example, wolves in the north are considered to be bigger in contrast to the wolves in the south. Additionally, for length, wolves tend to be 3 to 5 feet long. Their tails often are one to two feet long in length. The male wolves can weight anywhere around 70 to 145 pounds (32 to 66 kg) and the female wolves can weigh anywhere from 60 to 100 pounds (27 to 45 kg). The gray wolf can be found in serval American states such as Alaska, North Idaho, North Michigan, North Wisconsin, Northeast Oregon, West Montana, and in Yellowstone park which is located in Wyoming. [48] | Typically no more than 10 years [49] | Up to 20 years [50] | |
Honey Badgers
| Mellivora capensis, commonly known as honey badgers, are considered small mammals that weigh from 11 to 35 pounds. [51] Mellivora Capensis have been observed to defend themselves against Leopards, Pythons, and Crocodiles. Honey Badgers can be found in dry areas, grasslands, and forests in Africa, Asia, and the Indian Subcontinent. [52] Honey Badgers are considered solitary mammals and have black and white fur with large sharp claws as distinctive features. [52] | 7-8 years in the wild [53] | Approximately 24 years (longest recorded 31 years) [53] |
The San Diego Zoo Safari Park is a zoo and safari park in San Diego, California, located in San Pasqual Valley. The park houses over 3,000 animals representing more than 300 species. It houses a large array of wild and endangered animals from every continent except Antarctica. The park also includes a botanical garden with over one million plants.
The bonobo, also historically called the pygmy chimpanzee, is an endangered great ape and one of the two species making up the genus Pan. While bonobos are, today, recognized as a distinct species in their own right, they were initially thought to be a subspecies of Pan troglodytes, due to the physical similarities between the two species. Taxonomically, members of the chimpanzee/bonobo subtribe Panina—composed entirely by the genus Pan—are collectively termed panins.
The San Diego Zoo is a zoo in San Diego, California, located in Balboa Park. The zoo houses over 12,000 animals of more than 680 species and subspecies. It is the most visited zoo in the United States. Travelers have cited it as one of the best zoos in the world. The zoo was a pioneer in the concept of open-air, cage-less exhibits that recreate natural animal habitats. It sits on 100 acres of land leased from the City of San Diego.
The Houston Zoo is a 55-acre (22 ha) zoological park located within Hermann Park in Houston, Texas, United States. The zoo houses over 6,000 animals from more than 900 species. It receives around 2 million visitors each year and is the second most visited zoo in the United States, surpassed only by the San Diego Zoo. It is accredited by the Association of Zoos and Aquariums (AZA).
The Association of Zoos and Aquariums (AZA), originally the American Association of Zoological Parks and Aquariums, is an American 501(c)(3) nonprofit organization founded in 1924 and dedicated to the advancement of zoos and public aquariums in the areas of conservation, education, science, and recreation. AZA is headquartered in Silver Spring, Maryland, and accredits zoos. There were 238 accredited facilities as of 2019, primarily in the US, and also a handful in eleven other countries.
Lincoln Park Zoo, also known as Lincoln Park Zoological Gardens, is a 35-acre (14 ha) zoo in Lincoln Park, Chicago, Illinois. The zoo was founded in 1868 and is the second oldest zoo in the United States. It is also one of a small number of zoos to offer free admission. The zoo is an accredited member of the Association of Zoos and Aquariums (AZA). In 2019 it also became an accredited arboretum.
The lion-tailed macaque, also known as the wanderoo, is an Old World monkey endemic to the Western Ghats of South India.
The western lowland gorilla is one of two Critically Endangered subspecies of the western gorilla that lives in montane, primary and secondary forest and lowland swampland in central Africa in Angola, Cameroon, Central African Republic, Republic of the Congo, Democratic Republic of the Congo, Equatorial Guinea and Gabon. It is the nominate subspecies of the western gorilla, and the smallest of the four gorilla subspecies.
The Born Free Foundation is an international wildlife charity that campaigns to "Keep Wildlife in the Wild". It protects wild animals in their natural habitat, campaigns against the keeping of wild animals in captivity and rescues wild animals in need. It also promotes compassionate conservation, which takes into account the welfare of individual animals in conservation initiatives. Born Free also creates and provides educational materials and activities that reflect the charity's values.
Captive breeding, also known as captive propagation, is the process of keeping plants or animals in controlled environments, such as wildlife reserves, zoos, botanic gardens, and other conservation facilities. It is sometimes employed to help species that are being threatened by the effects of human activities such as climate change, habitat loss, fragmentation, overhunting or fishing, pollution, predation, disease, and parasitism.
The International Primate Protection League (IPPL) is a not-for-profit animal welfare organization founded in 1973 in Thailand by Shirley McGreal.
The Chattanooga Zoo at Warner Park is a 13-acre (5.3 ha) zoological park located in Warner Park in Chattanooga, Tennessee. The zoo was established in 1937 by the City of Chattanooga with the construction of two 4 by 6 feet cages for rhesus monkeys. The zoo has been accredited by the Association of Zoos and Aquariums (AZA) since 1998.
Behavioral enrichment is an animal husbandry principle that seeks to enhance the quality of captive animal care by identifying and providing the environmental stimuli necessary for optimal psychological and physiological well-being. Enrichment can either be active or passive, depending on whether it requires direct contact between the animal and the enrichment. A variety of enrichment techniques are used to create desired outcomes similar to an animal's individual and species' history. Each of the techniques used is intended to stimulate the animal's senses similarly to how they would be activated in the wild. Provided enrichment may be seen in the form of auditory, olfactory, habitat factors, food, research projects, training, and objects.
Experiments involving non-human primates (NHPs) include toxicity testing for medical and non-medical substances; studies of infectious disease, such as HIV and hepatitis; neurological studies; behavior and cognition; reproduction; genetics; and xenotransplantation. Around 65,000 NHPs are used every year in the United States, and around 7,000 across the European Union. Most are purpose-bred, while some are caught in the wild.
A zoo is a facility in which animals are kept within enclosures for public exhibition and often bred for conservation purposes.
The Captive Primate Safety Act is proposed United States legislation that modifies the Lacey Act Amendments of 1981 to treat nonhuman primates as prohibited wildlife species, allowing exemptions for zoos and research facilities. The bill would eliminate the use of primates in the domestic pet trade at a federal level. A December 2023 review found that the "U.S. ranked third out of 171 countries in the ease of purchasing a pet primate online, behind Indonesia and Vietnam." The bill, if passed, would raise U.S. standards to resemble those of the European Union, United Kingdom, Italy, the Netherlands, and other countries where pet primates are strictly regulated.
An exotic pet is a pet which is relatively rare or unusual to keep, or is generally thought of as a wild species rather than as a domesticated pet. The definition varies by culture, location, and over time—as animals become firmly enough established in the world of animal fancy, they may no longer be considered exotic.
Abnormal behavior of birds in captivity has been found to occur among both domesticated and wild birds. Abnormal behavior can be defined in several ways. Statistically, 'abnormal' is when the occurrence, frequency or intensity of a behaviour varies statistically significantly, either more or less, from the normal value. This means that theoretically, almost any behaviour could become 'abnormal' in an individual. Less formally, 'abnormal' includes any activity judged to be outside the normal behaviour pattern for captive birds of that particular class or age. For example, running rather than flying may be a normal behaviour and regularly observed in one species, however, in another species it might be normal but becomes 'abnormal' if it reaches a high frequency, or in another species it is rarely observed and any incidence is considered 'abnormal'. This article does not include 'one-off' behaviours performed by individual birds that might be considered abnormal for that individual, unless these are performed repeatedly by other individuals in the species and are recognised as part of the ethogram of that species.
Animal non-reproductive sexual behavior encompasses sexual activities that non-human animals participate in which do not lead to the reproduction of the species. Although procreation continues to be the primary explanation for sexual behavior in animals, recent observations on animal behavior have given alternative reasons for the engagement in sexual activities by animals. Animals have been observed to engage in sex for social interaction bonding, exchange for significant materials, affection, mentorship pairings, sexual enjoyment, or as demonstration of social rank. Observed non-procreative sexual activities include non-copulatory mounting, oral sex, genital stimulation, anal stimulation, interspecies mating, same-sex sexual interaction, and acts of affection, although it is doubted that they have done this since the beginning of their existence. There have also been observations of sex with cub participants, as well as sex with dead animals.