Four of the five contemporary migrations in East Africa are severely threatened and have virtually collapsed.
Rare colour variants of hunted African species have been known for a long time. Trophy hunters seeking novelty might pay more to hunt these unusually coloured animals.
Many mammals depend on large areas and trans-boundary conservation for their survival. When this is obstructed it can have a catastrophic impact on animal populations.
More and more Africans are becoming citizen scientists – and the benefits are huge both for them as individuals and for science on the continent.
Forget fences and international agreements. This five-year study in the Serengeti has found the way forward.