October 31, 2016
In an ingenious experiment, researchers at Texas Tech University took pirate perch prey, like frogs and aquatic beetles, and plopped them in outdoor, artificial ponds. They then introduced different species of fishes to those ponds, plunking down plastic tubs covered with mesh so that the frogs and beetles couldn't see the fish but could "smell" their various chemical signatures. In every scenario, except for one, the frogs and beetles responded by sensing danger and not laying eggs near these enclosures. That one? Pirate perch, of course! Even though they were sharing the same space as a voracious predator, the frogs and beetles acted as if the pirate perch weren't there at all.
Read the story here.