As a mating display, puffins rub their beaks together - a behavior known as "billing"

Male hooded seals inflate their nasal sac as a part of mating display

A parody of Superb bird-of-paradise (Lophorina superba) mating dance.
It originally looks like a psychotic smile.

Horseshoe crabs mate under the moonlight

Sea urchins release sperm and eggs into the open ocean

Male frigatebirds inflate their throat pouches as a part of their mating display

Protandrous clownfish

#FindingLukeAnemonewalker

Male and female Tanzanian red claw scorpions engage in a "dance" for the female to gauge the male's strength before mating

Lumpsucker fish

Ode to Jeremy the left-coiled snail in search of love