Male strawberry poison dart frogs (Dendrobates pumilio) wrestle on the the forest floor for control over territory. Their bold colours advertise their toxicity to would-be predators.

• 在森林地面上，两只雄性草莓箭毒蛙正用“摔跤”这种方式决出谁才是这片领地的控制者。草莓箭毒蛙体色鲜艳，令人产生一种恐惧感，这种体色无疑是在警告潜在的捕食者“体内有毒，离我们远点”。