These mudskippers (Thailand) look like opera singers, but they’re actually two males in the midst of a heated battle over territory. They will flop around and try to bite each other until one opponent backs down.
Image credit: Daniel Trim
Considering red pandas typically travel on all fours, they have excellent balance standing on their hind legs. Using their tail to prop them up, red pandas often stand up to make themselves look bigger when threatened.
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Fireflies use their bioluminescent signaling to communicate with and find potential mates. However, female Photuris fireflies are carnivorous, and they will mimic the female signals of other species to lure in males for predation. Entomologists call these ladies the “femmes fatales” of the firefly kingdom.
Image credit: Tsuneaki Hiramatsu