The eyeless “tripod fish” Bathypterois grallator stands up to a meter off the sea floor on three fins with incredibly elongated tips. Swimming only when necessary, it spends most of its time standing in a single spot, eating whatever tiny creatures may bump into its outstretched front fins - a feeding tactic more commonly seen in sessile invertebrates, such as anemones, crinoids or barnacles. When a tripod fish does decide to swim, its “legs” lose their rigidity and trail behind it like soft tails.

(photo & information via Jonathan Wojcik, bogleech.com)