Wild Chimpanzees dying from Anthrax

Concerns raised by the death of 9 of 79 chimpanzees from anthrax in an Ivory Coast national park, Africa. Could the biochemistry of bats reveal secrets of longevity? Study of the parasite that causes leishmaniasis disease spread by sandflies offers new hope for treatment. The study of "contagious yawning" behaviours of chimpanzees help assess their self-awareness.