On Twitter, Simon Stevens pulled together 36 examples of the cover, which make it seem like the entire African continent is in a perpetual sunset, covered in isolated acacia trees: ...

Acacia trees are a prominent feature of the East African savannah. They're also a classic example of the long-standing and complex relationships between plants and insects, in this case acacia ants.

Symbiotic ants live on and benefit from this acacia tree A species of acacia tree found in Eastern Africa seems to be protected from elephant damage - by the ants that live on it. Researchers from ...