Big cats | |
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Images of the members of the genus Panthera , from top to bottom: the tiger, the lion, the jaguar, the leopard, and the snow leopard. | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Mammalia |
Order: | Carnivora |
Suborder: | Feliformia |
Superfamily: | Feloidea |
Family: | Felidae |
Species | |
The term "big cat" is typically used to refer to any of the five living members of the genus Panthera , namely the tiger, lion, jaguar, leopard, and snow leopard, as well as the non-pantherine cheetah and cougar. [1] [2]
All cats descend from the Felidae family, sharing similar musculature, cardiovascular systems, skeletal frames, and behaviour. Both the cheetah and cougar differ physically from fellow big cats, and to a greater extent, other small cats. As obligate carnivores, big cats are considered apex predators, topping their food chain without natural predators of their own. [3] [4] Native ranges include the Americas, Africa, and Asia; the ranges of the leopard and tiger also extend into Europe, specifically in Russia. [5]
It is estimated that the ancestors of most big cats split away from the Felinae about 6.37 million years ago. [6] The Felinae, on the other hand, comprises mostly small to medium-sized cats, including domestic cats, but also some larger cats such as the cougar and cheetah. [7]
A 2010 study published in Molecular Phylogenetics and Evolution has given insight into the exact evolutionary relationships of the big cats. [8] The study reveals that the snow leopard and the tiger are sister species, while the lion, leopard, and jaguar are more closely related to each other. The tiger and snow leopard diverged from the ancestral big cats approximately 3.9 Ma. The tiger then evolved into a unique species towards the end of the Pliocene epoch, approximately 3.2 Ma. The ancestor of the lion, leopard, and jaguar split from other big cats from 4.3–3.8 Ma. Between 3.6 and 2.5 Ma, the jaguar diverged from the ancestor of lions and leopards. Lions and leopards split from one another approximately 2 Ma. [9] The earliest big cat fossil, Panthera blytheae , dating to 4.1−5.95 MA, was discovered in southwest Tibet. [10]
3.9 Ma |
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The ability to roar comes from an elongated and specially adapted larynx and hyoid apparatus. [11] The larynx is attached to the hyoid bone that is hanging from a sequence of bones. This sequence of bones the hyoid hangs from are tympanohyal, stylohyal, epihyal, and ceratohyal; these are located in the mandible and skull. [12] In the larynx, there are vocal folds that produce the structure needed to stretch the ligament to a length that creates the roar effect. This tissue is made of thick collagen and elastic fiber that becomes denser as it approaches the epithelial mucosal lining. [13] When this large pad folds it creates a low natural frequency, causing the cartilage walls of the larynx to vibrate. When it begins to vibrate the sound moves from a high to low air resistance which makes the roaring.
The lion's larynx is the longest, giving it the most robust roar. The roar in good conditions can be heard 8 or even 10 km (5 or 6 mi) away. [14] All five extant members of the genus Panthera contain this elongated hyoid but owing to differences in the larynx the snow leopard cannot roar. Unlike the roaring cats in their family, the snow leopard is distinguished by the lack of a large pad of fibro-elastic tissue that allows for a large vocal fold.
The range of weights exhibited by the species is large. At the bottom, adult snow leopards usually weigh 22 to 55 kg (49 to 121 lb), with an exceptional specimen reaching 75 kg (165 lb). [15] [16]
Male and female lions typically weigh 150–250 kg (330–550 lb) and 110–182 kg (243–401 lb) respectively, [17] [18] and male and female tigers 100–306 kg (220–675 lb) and 75–167 kg (165–368 lb) respectively. [19] Exceptionally heavy male lions and tigers have been recorded to exceed 306 kg (675 lb) in the wilderness, [20] [21] and weigh around 450 kg (990 lb) in captivity. [20] [22]
The liger, a hybrid of a lion and tiger, can grow to be much larger than its parent species. In particular, a liger called 'Nook' is reported to have weighed over 550 kg (1,210 lb). [23] [24]
An animal sanctuary provides a refuge for animals to live out their natural lives in a protected environment. Usually, these animal sanctuaries are the organizations which provide a home to big cats whose private owners are no longer able or willing to care for their big cats. However, the use of the word sanctuary in an organization's name is by itself no guarantee that it is a true animal sanctuary in the sense of a refuge. To be accepted by the United States Fish and Wildlife Service (FWS) as a bona fide animal sanctuary and to be eligible for an exemption from the prohibition of interstate movement of big cats under the Captive Wildlife Safety Act (CWSA), organizations must meet the following criteria: [25]
Internationally, a variety of regulations are placed on big cat possession. [26] In Austria, big cats may only be owned in a qualified zoo which is overseen by a zoologist or veterinarian. [27] Requirements must also be met for enclosures, feeding, and training practices. Both Russia and South Africa regulate private ownership of big cats native to each country. Some countries, including Denmark, Thailand and India, prohibit all private ownership of big cats. [26]
The members of the Panthera genus are classified as some level of threatened by the IUCN Red List: the lion, [28] leopard [5] and snow leopard [29] are categorized as Vulnerable; the tiger is listed as Endangered; [30] and the jaguar is listed as Near Threatened. [31] Cheetahs are also classified as Vulnerable, [32] and the cougar is of Least Concern. [33] All species currently have populations that are decreasing. The principal threats to big cats vary by geographic location but primarily consist of habitat destruction and poaching. In Africa, many big cats are hunted by pastoralists or government "problem animal control" officers. Certain protected areas exist that shelter large and exceptionally visible populations of African leopards, lions and cheetahs, such as Botswana's Chobe, Kenya's Masai Mara, and Tanzania's Serengeti; outside these conservation areas, hunting poses the dominant threat to large carnivores. [34]
In the United States, 19 states have banned ownership of big cats and other dangerous exotic animals as pets, and the Captive Wildlife Safety Act bans the interstate sale and transportation of these animals. [35] The initial Captive Wildlife Safety Act (CWSA) was signed into law on December 19, 2003. [36] To address problems associated with the increasing trade in certain big cat species, the CWSA regulations were strengthened by a law passed on September 17, 2007. [37] The big cat species addressed in these regulations are the lion, tiger, leopard, snow leopard, clouded leopard, cheetah, jaguar, cougar, and any hybrid of these species (liger, tigon, etc.). Private ownership is not prohibited, but the law makes it illegal to transport, sell, or purchase such animals in interstate or foreign commerce. Although these regulations seem to provide a strong legal framework for controlling the commerce involving big cats, international organizations such as the World Wildlife Fund (WWF) have encouraged the U.S. to further strengthen these laws. The WWF is concerned that weaknesses in the existing U.S. regulations could be unintentionally helping to fuel the black market for tiger parts. [38]
Felidae is the family of mammals in the order Carnivora colloquially referred to as cats. A member of this family is also called a felid.
The tiger is a member of the genus Panthera and the largest living cat species native to Asia. It has a powerful, muscular body with a large head and paws, a long tail and orange fur with black, mostly vertical stripes. It is traditionally classified into nine recent subspecies, though some recognise only two subspecies, mainland Asian tigers and the island tigers of the Sunda Islands.
The leopard is one of the five extant species in the genus Panthera. It has a pale yellowish to dark golden fur with dark spots grouped in rosettes. Its body is slender and muscular reaching a length of 92–183 cm (36–72 in) with a 66–102 cm (26–40 in) long tail and a shoulder height of 60–70 cm (24–28 in). Males typically weigh 30.9–72 kg (68–159 lb), and females 20.5–43 kg (45–95 lb).
Panthera is a genus within the family Felidae, and one of two extant genera in the subfamily Pantherinae. It contains the largest living members of the cat family. There are five living species: the jaguar, leopard, lion, snow leopard and tiger, as well as a number of extinct species, including the cave lion and American lion.
The liger is a hybrid offspring of a male lion and a tigress, or female tiger. The liger has parents in the same genus but of different species. The liger is distinct from the opposite hybrid called the tigon, and is the largest of all known extant felines. They enjoy swimming, which is a characteristic of tigers, and are very sociable like lions. Notably, ligers typically grow larger than either parent species, unlike tigons.
A purr or whirr is a tonal fluttering sound made by some species of felids, including both larger, outdoor cats and the domestic cat, as well as two species of genets. It varies in loudness and tone among species and in the same animal. In smaller and domestic cats it is known as a purr, while in larger felids, such as the panther, it is called a whirr.
A Panthera hybrid is a crossbreed between individuals of any of the five species of the genus Panthera: the tiger, lion, jaguar, leopard, and snow leopard. Most hybrids would not be perpetuated in the wild as the territories of the parental species do not overlap and the males are usually infertile. Mitochondrial genome research revealed that wild hybrids were also present in ancient times. The mitochondrial genomes of the snow leopard and the lion were more similar to each other than to other Panthera species, indicating that at some point in their history, the female progeny of male ancestors of modern snow leopards and female ancestors of modern lions interbred with male ancestors of modern snow leopards.
The Pantherinae is a subfamily of the Felidae; it was named and first described by Reginald Innes Pocock in 1917 as only including the Panthera species, but later also came to include the clouded leopards. The Pantherinae genetically diverged from a common ancestor between 9.32 to 4.47 million years ago and 10.67 to 3.76 million years ago.
A rosette is a rose-like marking or formation found on the fur and skin of some animals, particularly cats. Rosettes are used to camouflage the animal, either as a defense mechanism or as a stalking tool. Predators use their rosettes to simulate the different shifting of shadows and shade, helping the animals to remain hidden from their prey. Rosettes can be grouped in clusters around other spots, or may appear as blotches on the fur.
Panthera gombaszoegensis, also known as the European jaguar, is a Panthera species that lived from about 2.0 to 0.35 million years ago in Europe. The first fossils were excavated in 1938 in Gombasek Cave, Slovakia. Some records were also reported from Africa and Asia. P. gombaszoegensis was a medium-large sized species that formed an important part of the European carnivore guild for a period of over a million years. Many authors have posited that it is the ancestor of the American jaguar, with some authors considering it the subspecies Panthera onca gombaszoegensis, though the close relationship between the two species has been questioned.
The Indian leopard is a subspecies of the leopard widely distributed on the Indian subcontinent. It is threatened by illegal trade of skins and body parts, and persecution due to human-leopard conflict and retaliation for livestock depredation.
Alan Robert Rabinowitz was an American zoologist who served as the president, CEO, and chief scientist at Panthera Corporation, a nonprofit conservation organization devoted to protecting the world's 40 wild cat species. Called the "Indiana Jones of Wildlife Protection" by Time, he studied jaguars, clouded leopards, Asiatic leopards, tigers, Sumatran rhinos, bears, leopard cats, raccoons, cervidae, and civets.
Parc des Félins is a zoological park in France dedicated to the breeding and conservation of wild members of the cat family. It is located in the commune of Lumigny-Nesles-Ormeaux in Seine-et-Marne, about 53.6 km (33.3 mi) southeast of Paris.
Prusten is a form of communicative behaviour exhibited by some members of the family Felidae. Prusten is also referred to as chuffing or chuffle. It is described as a short, low intensity, non-threatening vocalization. In order to vocalize a chuff, the animal's mouth is closed and air is blown through the nostrils, producing a breathy snort. It is typically accompanied by a head bobbing movement. It is often used between two cats as a greeting, during courtship, or by a mother comforting her cubs. The vocalization is produced by tigers, jaguars, snow leopards, clouded leopards and even polar bears. Prusten has significance in both the fields of evolution and conservation.
The snow leopard is a species of large cat in the genus Panthera of the family Felidae. The species is native to the mountain ranges of Central and South Asia. It is listed as Vulnerable on the IUCN Red List because the global population is estimated to number fewer than 10,000 mature individuals and is expected to decline about 10% by 2040. It is mainly threatened by poaching and habitat destruction following infrastructural developments. It inhabits alpine and subalpine zones at elevations of 3,000–4,500 m (9,800–14,800 ft), ranging from eastern Afghanistan, the Himalayas and the Tibetan Plateau to southern Siberia, Mongolia and western China. In the northern part of its range, it also lives at lower elevations.
A roar is a type of animal vocalization that is loud, deep and resonating. Many mammals have evolved to produce roars and other roar-like vocals for purposes such as long-distance communication and intimidation. These include various species of big cats, bears, pinnipeds, deer, bovids, elephants and simians.
Panthera Corporation, or Panthera, is a charitable organization devoted to preserving wild cats and their ecosystems around the globe. Founded in 2006, Panthera is devoted to the conservation of the world’s 40 species of wild cats and the vast ecosystems they inhabit. Their team of biologists, data scientists, law enforcement experts and wild cat advocates studies and protects the seven species of big cats: cheetahs, jaguars, leopards, lions, pumas, snow leopards and tigers. Panthera also creates targeted conservation strategies for the world’s most threatened and overlooked small cats, such as fishing cats, ocelots and Andean cats. The organization has offices in New York City and Europe, as well as offices in Mesoamerica, South America, Africa and Asia.
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