Another world

A large brown bear stands in a forest, then mounts a smaller bear from behind, both looking forward with wide eyes. The scene shifts to a mountain lion mounting another mountain lion on a sandy shore, followed by a moose mounting a deer near a stream, a crocodile mounting another crocodile by a riverbank, and squirrels mounting each other in a tree. The sequence concludes with a wide shot of various animals in a forest clearing, many in mating positions, with a large bear standing prominently in the foreground.