Most Slowest Animal In The Planet : The Cornu aspersum Cornu aspersum, known by the common name garden snail, is a species of land snail. As such it is a terrestrial pulmonate gastropod mollusc in the family Helicidae, which include the most commonly familiar land snails. Scientific name: Cornu aspersum Speed: 0.029 mph (Maximum, Adult) Most Slowest Animal In The Planet : Sloths Sloths are mammals classified in the families Megalonychidae and Bradypodidae, including six extant species. Scientific name: Folivora Speed: 2 m or 6.5 ft per minute (Maximum, Adult) Most Slowest Animal In The Planet : Starfish Starfish or sea stars are star-shaped echinoderms belonging to the class Asteroidea. Common usage frequently finds these names being also applied to ophiuroids, which are correctly referred to as brittle stars or "basket stars" . Scientific name: Asteroidea Speed: 0.3 mm/s (Maximum, Adult) Most Slowest Animal In The Planet : Giant tor...