A. Koala
B. Tiger
C. Squirrel
D. Python
The Koala is the sleepiest animal in the world. Koala sleeps about 22 hours out of 24 hours. The koala or koala bear, is an arboreal herbivorous marsupial native to Australia. It is the only extant representative of the family Phascolarctidae and its closest living relatives are the wombats, which are members of the family Vombatidae.
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