A harlequin swimming crab (Lissocarcinus laevis) hides under an anemone, Wakatobi National Park, Indonesia.

actiniaria anemone animal animal limbs animal themes animals in the wild anthozoa aquatic arthropod biodiversity biology cnidaria color image coral triangle crab crustacean day decapoda detail ecology ecosystem front view habitat harlequin crab hexacorallia hiding horizontal indo pacific ocean indonesia lissocarcinus laevis malacostraca marine biology no people ocean one animal outdoors photography polyp portunidae reef science sea sea anemone sea life southeast asia southeast sulawesi sulawesi swimming crabs symbiosis symbiotic relationship tube anemone underneath undersea underwater wilderness wildlife zoology