Varanid lizards are very
intelligent, and some species can even count.Careful studies feeding V.
albigularis at the San Diego Zoo varying numbers of snails showed that they can
distinguish numbers up to six. V. niloticus lizards have been observed to
cooperate when foraging. One varanid lures the female crocodile away from her
nest, while the other opens the nest to feed on the eggs.The decoy then returns
to also feed on the eggs. Komodo dragons, V. komodoensis, at the Smithsonian
National Zoological Park in Washington, D.C., recognize their keepers and seem to
have distinct personalities.
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