How Wildebeest Saved the Serengeti

This 6 October 2019 video says about itself:

How Wildebeest Saved the Serengeti

This breakthrough study shows how wildebeest are Serengeti keystones.

For example, gazelle, wildebeest or zebra could cue in to the presence of a predator such as a lion by seeing other species react, using the “network” to keep themselves safe. The new model by Gil, Basket and Schreiber is the first to take this kind of short-term information sharing into account at the population level: here.