With a speed of half an inch per second, snails manage to survive, and even thrive in urban environments. To protect themselves from predators, snails retract into their shells. The shell also helps snails survive harsh temperatures – the snail would secrete a mucus that hardens and seals the opening of the shell, thus conserving heat and moisture.
10. Sea Horse - Lets the World Come to It
Believe it or not, the sea horse is the slowest animal on this list. While cartoons depict them as horses of the sea, these tiny fish are actually capable of moving at a pace of 0.15 inches per second. Their body structure is not particularly adapted for swimming, but rather to stabilize them and help them avoid being taken by currents. Since they’re not very good swimmers, the seahorse uses its tail to grab onto plants and corals, and eats tiny worms and other mollusks that come to feed on plants.