The reasons animals clash with each other may vary, but one aspect holds true: Fights are rarely a private affair in the wild. Often ... The team introduced a male mouse into another’s cage to ...

Even in the unnatural setting of a laboratory animal facility, they maintain many behaviour patterns exhibited in the wild ... nocturnal mouse. This might happen after a cage change, for instance.

A spectral bat in a cage targets a laboratory mouse in leaf litter on a table. Scientists studying these carnivorous bats in Mexico haven’t yet seen them take prey in the wild, so they film them ...