While evolving with specialized defenses has helped animals escape predation, long-term risks need to be considered. The simple act of camouflage or mimicry, which sufficiently confuses prey, doesn't seem to have backfired, but the use of chemical defenses has. In fact, some amphibians that release lethal toxins to kill predators are now at a higher risk of extinction.
Nearly half of all camels in Kenya have been infected by the virus that causes Middle East Respiratory Syndrome (MERS), a new study shows. These findings shed light on the role the desert animals might play in transmitting this emerging disease to humans.