Consulting research studies, documented observations, and news articles, Stacker compiled 12 instances of animals in the wild adopting other animals of different species. The list includes the ...

Some animals go to extreme measures to secure a mate and survive. Other species forgo the mating process and instead become meals. In the case of the European common frog, however, Rana temporaria ...

Researchers have captured footage of these bears making a wide range of vocalizations during their most intimate moments—the ...