With its usual prey gone, a fish survives by changing predictably

With its usual prey gone, a fish survives by changing predictably

03/13/2015 10:24 AM EDT

Without the Bahamas mosquitofish to eat, bigmouth sleepers slide down the food chain and survive on insects, snails and crustaceans. And, in so doing, sleepers' behaviors, the ratio of males to females and physical appearance change, too.

Full story at http://blog.case.edu/think/2015/03/04/usual_prey_gone_a_fish_survives_by_changing_predictably

Source
Case Western Reserve University

This is an NSF News From the Field item.