The Addax, Addax nasomaculatus, is listed as ‘Critically Endangered’ on the IUCN Red List of Threatened Species™. This desert-dwelling antelope was once found across northern Africa, but is now restricted to a much smaller area, in Niger, Chad, and possibly along the border between Mali and Mauritania.
Southern white rhinoceros populations, once thriving in zoos, have been showing severely reduced reproductivity among the captive-born population. San Diego Zoo Global researchers have a possible lead into why the southern white rhinoceros population in managed-care facilities is declining: phytoestrogens in their diet might be contributing to reproductive failure in the females.
Hunting in the ocean’s murky depths, vision is of little use, so toothed whales and dolphins (odontocetes) rely on echolocation to locate tasty morsels with incredible precision. Laura Kloepper from the University of Hawaii, USA, explains that odontocetes produce their distinctive echolocation clicks in nasal structures in the forehead and broadcast them through a fat-filled acoustic lens, called the melon. ‘Studies by other people showed odontocetes have the ability to control the shape of the echolocation beam and it has [...]
Human values and folklore of wildlife strongly influence the effectiveness of conservation efforts. These values and folklore may also vary with certain demographic characteristics such as gender, age, or education. Reptiles and amphibians are among the least appreciated of vertebrates and are victims of many negative values and wrong ideas resulting from the direct interpretation of folklore. Researchers tried to demonstrate how these values and folklore can affect the way people relate to them and also the possible conservation impacts [...]
Management of fisheries at the community level can help curb overfishing and the ‘tragedy of the commons’ which is driving humans to decimate the planet’s dwindling fish stocks, an international scientific team says.
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