Medicine & TechnologyCountless years and miles after they're hatched, mature turtles then go back to where they were born to mate and produce their own offspring.
While it has long been theorized that fishes swim in schools to conserve energy through neighbor-induced flows, as with flocks of birds, the use of robot fishes provides the first conclusive evidence.
In science, there is a term for the notion that breeding out aggression in animals affects their evolution - "domestication syndrome" - and might explain some of the marmoset monkeys' physical traits.