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Giant Tortoise â The giant tortoise is the worldâs slowest reptile and one of the slowest animals in the world. But with a life span of 190 years, heâs not in a rush. And besides, youâd move slow too if you weigh as much as 300 kg (660 lbs). Slowest Animals In The World: Giant Tortoise (source: wiki).5. Koala Bear â The Koala bears are native to Australia, and like the sloths â they are both very cute and very slow.iant Tortoise â The giant tortoise is the worldâs slowest reptile and one of the slowest animals in the world. But with a life span of 190 years, heâs not in a rush. And besides, youâd move slow too if you weigh as much as 300 kg (660 lbs). Slowest Animals In The World: Giant Tortoise (source: wiki).
Top 10 Slowest Animals in the World includes some of interesting animals which are extremely slow. So here is the Top 10 Slowest Animals in the World. 1. Three-toed Sloth: Sloth is the slowest animal in the world.Sloth is the synonym of slow motion.lug: Slug is a slow animal. Slug is such a slow animal that they never reach a speed of .2 miles per hour. In fact the fastest slug ever recorded was .19 miles per hour. Slug is in the 6th position of these Top 10 Slowest Animals in the World.