Why aren’t there more lions when there’s plenty of prey on the African savanna? A team of researchers, including integrative biology professors John Fryxell and Kevin McCann, found that relative amounts of predator and prey biomass in diverse ecosystems around the globe are remarkably well-predicted by a simple mathematical function called a power scaling law.
Where are the lions and other top predators?
![Lion in African savanna.](../../wp-content/uploads/2015/10/lion-900x400.jpg)