what is the smallest animal in the world?
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I would imagine something in the microbe department. Like a paramecium or ameba.
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Pretty much anything that is smaller or slower than a lion. This does exclude rhinos, hippos, end elephants.
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any animal with 4 legs?
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The weasel. Weasels arn't rodents like the others. They are the smallest members of the family Mustelidae.
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A. The lowest order of primates are lemurs. They live in the trees, feed at night, and actually are quite cute.
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I initially thought bonsai also, but then found that the smallest tree in the world is the dwarf willow. In some places, it grows only two inches (5 cm) tall.
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African Elephant. The Indian elephant is generally smaller, and weighs less.
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Toothless mammals include:\nPlatypus\nEchidnas\nAnteaters\nPangolins\nBaleen whales\n\nContrary to what others have listed, the following mammals do, in fact, have small peg-like teeth:\narmadillos, sloths, and aardvarks
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UMMMMMM a shark?????  and it eats little tiny little fish smaller than it is?????
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a chimp, because it's smaller than a gorllia!
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Smallest Insect: \n\n\n\nFairyflies are tiny wasps (family Mymaridae) that are probably the smallest of all insects.   In Dicopomorpha echmepterygis, a Costa Rican species that parasitizes the eggs of other insects, the males may be no more than 0.139 mm in length.   Their tiny bodies, neatly packaged with complete digestive, reproductive, respiratory, and circulatory systems are actually smaller than a single-celled paramecium
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The Arctic Ocean is the smallest and shallowest.
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The majority of small tooth whales are called dolphins.  They are mammals of the order Cetacea and the families Plantanistidae and Delphinidae and include about 50 species.  All have a beak like snout and sharp, conical teeth.  The term porpoise is sometimes applied to many of the same species, but porpoises, are members of the family Phocaenidae and have a blunt snout and spade or chisel shaped teeth.  The dolphin fish, is neither a dolphin nor a porpoise.  It is a sport fish related to the mackerels.
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Smallest Ocean:\n\nThe Arctic Ocean, with an area of 9,485,000 sq km (3,662,000 sq miles), is the smallest ocean. It has a maximum depth of 5,450 m (17,880 ft). The Arctic Ocean is not completely enclosed by land, however, and so is sometimes referred to as an arm of the Atlantic. It is also connected to the waters of the Pacific Ocean by the Bering Strait.\n\nThe Arctic Ocean is ten times smaller than the Pacific Ocean, and has about 1.5 times the surface area of the United States. It is the smallest of the four oceans, and is almost completely surrounded by land at the top of the globe.
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Greenland is the world's largest island; Australia, the smallest continent.
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An amoeba is the smallest animal in the world. It is a single cell organism. This means it has ONLY one cell in its whole body and insides.
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I'll be telling you in order (from smallest to largest)\n-Australia(the smallest among the three)\n- Antarctica\n- Africa