Escape From Predators

Perhaps it was not only a shortage of food that sent man to the water in the first place, but also a means of escaping from powerful predators: possibly Homo aquaticus was only able to survive and evolve with the help of a number of small sandy or rocky islands stretching up the tropical coasts or margins of lakes where he could live in large colonies, like those of seals or penguins, and where his only enemies were sharks and killer whales in the sea or crocodiles in lakes and rivers. ((Morgan, Elaine. The Aquatic Ape. Stein and Day, 1982. 150. http://www.aquaticape.org/predators.html))