The top row shows variation in a zooplankton, Daphnia: the morph on the right is produced in the presence of a predator cue. The second row shows an example of dimorphic variation in horn length, ...
In 2004, researchers noticed a baby marmoset living with a group of capuchin monkeys on a wildlife reserve in Brazil. The marmoset — the researchers called her Fortunata — was discovered with the ...
Animals often get labeled as either predators or prey. But in the wild, survival isn’t always a one-animal job. Some species form partnerships that help them find food, avoid danger, or raise young.