The weirdest and wildest mating rituals in the animal world, from bed bugs to giraffes

Gorilla Mating, Reproduction, Breeding and Courtship

Whitetail deer courtship behavior, 1am. Doe urinates, and afterwards holds her tail up. She is in estrus, or soon will be. Her fawn, born last spring, is up the hill. Fawn is startled, then doe and fawn run off. Who else is up the hill? A big buck! Eight points on his antlers. Listen for his grunt as he moves down the hill. Buck gets a good sniff from where the doe urinated. He holds his head up and curls back his upper lip. This is the flehmen response, used by deer to transfer scent into the v

Mating Behavior | Squaw Mountain Ranch

Female Japanese Macaques Seen Having 'Sexual Interactions' With Sika Deer