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Beetles are insects that form the order Coleoptera, in the superorder Holometabola. Their front pair of wings are hardened into wing-cases, elytra, distinguishing them from most other insects. The Coleoptera, with about 400,000 described species, is the largest of all orders, constituting almost 40% of described insects and 25% of all known animal species; new species are discovered frequently, with estimates suggesting that there are between 0.9 and 2.1 million total species. However, the number of beetle species is challenged by the number of species in dipterans (flies) and hymenopterans (wasps).
The University of the Witwatersrand, Johannesburg, commonly known as Wits University or Wits, is a multi-campus public research university situated in the northern areas of central Johannesburg, South Africa. The university has its roots in the mining industry, as do Johannesburg and the Witwatersrand in general. Founded in 1896 as the South African School of Mines in Kimberley, it is the third oldest South African university in continuous operation.
The four-toothed whales or giant beaked whales are beaked whales in the genus Berardius. They include Arnoux's beaked whale in cold Southern Hemispheric waters, and Baird's beaked whale in the cold temperate waters of the North Pacific. A third species, Sato's beaked whale, was distinguished from B. bairdii in the 2010s.
Dung beetles are beetles that feed on feces. Some species of dung beetles can bury dung 250 times their own mass in one night.
Andrea Mia Ghez is an American astrophysicist, Nobel laureate, and professor in the Department of Physics and Astronomy and the Lauren B. Leichtman & Arthur E. Levine chair in Astrophysics, at the University of California, Los Angeles. Her research focuses on the center of the Milky Way galaxy.
Glaresis is a genus of beetles, sometimes called "Enigmatic scarab beetles", in its own family, Glaresidae. It is closely related to, and was formerly included in, the family Scarabaeidae. Although its members occur in arid and sandy areas worldwide, only the nocturnal adults have ever been collected, and both the larvae and biology of Glaresis are as yet unknown. Due to their narrow habitat associations, a great number of these species occur in extremely limited geographic areas, and are accordingly imperiled by habitat destruction.
The Milky Way is the galaxy that includes the Solar System, with the name describing the galaxy's appearance from Earth: a hazy band of light seen in the night sky formed from stars that cannot be individually distinguished by the naked eye.
Ochodaeidae, also known as the sand-loving scarab beetles, is a small family of scarabaeiform beetles occurring in many parts of the world.
The scarab beetle subfamily Scarabaeinae consists of species collectively called true dung beetles. Most of the beetles of this subfamily feed exclusively on dung. However, some may feed on decomposing matter including carrion, decaying fruits and fungi. Dung beetles can be placed into three structural guilds based on their method of dung processing namely rollers (telecoprids), dwellers (endocoprids) and tunnelers (paracoprids). Dung removal and burial by dung beetles result in ecological benefits such as soil aeration and fertilization; improved nutrient cycling and uptake by plants, increase in Pasture quality, biological control of pest flies and intestinal parasites and secondary seed dispersal. Well-known members include the genera Scarabaeus and Sisyphus, and Phanaeus vindex.
Mysore Doreswamy Madhusudan is an Indian wildlife biologist and ecologist. He is the co-founder and director of Nature Conservation Foundation, Mysore and a visiting research fellow at the University of Leeds. He has worked on understanding and mitigating the effects of human-wildlife conflict in the Nilgiri Biosphere Reserve in South India. He has also worked in several other forests in the Himalayas and North-east India. In 2004, he was one among the team of wildlife biologists who described Arunachal macaque, a new species of macaque from Arunachal Pradesh, India.
Feces, are the solid or semi-solid remains of food that was not digested in the small intestine, and has been broken down by bacteria in the large intestine. Feces contain a relatively small amount of metabolic waste products such as bacterially-altered bilirubin and dead epithelial cells from the lining of the gut.
The flightless dung beetle is a species of dung beetle endemic to a few areas of South Africa, including the Addo Elephant National Park, Amakhala Game Reserve and the Buffalo Valley Game Farm. It is the only species in the genus Circellium. The loss of flight allows the beetle to use the empty space below the elytra as a carbon dioxide storage tank, creating a unique breathing mechanism which conserves water, a valuable survival trait in the arid regions it lives in.
Animal navigation is the ability of many animals to find their way accurately without maps or instruments. Birds such as the Arctic tern, insects such as the monarch butterfly and fish such as the salmon regularly migrate thousands of miles to and from their breeding grounds, and many other species navigate effectively over shorter distances.
Scarabaeus satyrus is an African species of dung beetle. These beetles roll a ball of dung for some distance from where it was deposited, and bury it, excavating an underground chamber to house it. An egg is then laid in the ball, the growing larva feeding on the dung, pupating, and eventually emerging as an adult.
Many animals are able to navigate using the Sun as a compass. Orientation cues from the position of the Sun in the sky are combined with an indication of time from the animal's internal clock.
Saphobius is a genus of dung beetles in the tribe Deltochilini of the subfamily Scarabaeinae. They are endemic to New Zealand, with Saphobius edwardsi being most widespread. They are small in size, flightless, forest dwelling and nocturnal, which is unusual for dung beetles.
Euoniticellus intermedius is a species of dung beetle in the family Scarabaeidae. E. intermedius is native to Southeastern Africa but has spread to the United States, Mexico, and Australia. E. intermedius acts as an important agricultural agent due to its improvement of soil quality and removal of parasitic pests.
Marie Ann-Charlotte Dacke is a professor of Sensory Biology, at the Lund Vision Group in Lund University, Lund, Sweden. Her research focuses on nocturnal and diurnal compass systems, using the dung beetle as a model organism. Dacke is a Wallenberg Scholar as of 2025. In 2022, she was elected a fellow of the Royal Swedish Academy of Sciences. Dacke has a keen interest for the education of the general public and among other things act as a panel member of the Swedish TV show Studio Natur. In 2013, she received an Ig Nobel Prize for her work on the navigation system of dung beetles. Since 2018, she is also an honorary professor at the University of the Witwatersrand in Johannesburg, South Africa.
Maria Byrne is an Australian marine biologist, and professor of marine and developmental biology at the University of Sydney and a member of the Sydney Environment Institute. She spent 12 years as director of the university's research station on One Tree Island.
References
- ↑ Dacke, M.; Baird, E.; Byrne, M.; Scholtz, C. H.; Warrant, E. J. (2013). "Dung Beetles Use the Milky Way for Orientation". Current Biology. 23 (4): 298–300. doi: 10.1016/j.cub.2012.12.034 . PMID 23352694.
- ↑ Wits. "Marcus Byrne", University of Witwatersrand Johannesburg, Johannesburg, unknown date. Retrieved on 6 October 2014.
- ↑ Wits. "Marcus Byrne - entomologist", TED , USA, unknown date. Retrieved on 6 October 2014.