Fastest animals Fastest animals This is a list of the fastest animals in the world, grouped by types of animal. The fastest land animal is the cheetah, which has a recorded speed of . The peregrine falcon is the fastest bird and the fastest member of the animal kingdom with a diving speed of . The fastest animal in the sea is the black marlin, which has a recorded speed of . While comparing between various classes of animals, a different unit is used, body length per second for organisms. The fastest organism on earth, relative to body length, is the South
Out of the Silent Planet for a "hnakra" (plural "hnéraki"), a fierce water-creature which seems to be the only dangerous predator on the planet, resembling both a shark and a crocodile. While hunting, Ransom and his "hrossa" companions are told by an "eldil", an almost invisible creature reminiscent of a spirit or deva, that Ransom must go to meet Oyarsa, the "eldil" who is ruler of the planet—and indeed that he already should have done so. He hesitates to respond to the summons, as he wishes to proceed with the hunt. Hyoi, after killing the "hnakra" with Ransom's help, is shot dead by Devine and