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One of these is a deadly viper. The other is a harmless toad. Can you tell the difference?
The Congolese giant toad, which grows to the size of a small hand, would be a hearty meal for any predator. But it escapes being eaten by birds, lizards, and snakes with a trick never seen anywhere else in the world: It looks and acts just like the Gaboon viper, one of the most venomous snakes in Central Africa.
Animals - Ones - Viceroy - Butterflies - Toxic
Many animals imitate dangerous ones to avoid being eaten. Viceroy butterflies are colored like the toxic monarch, for example, and many harmless snakes mimic venomous ones. But this is the first time a toad has been found to mimic a snake.
To make sure researchers weren’t seeing things, a team of herpetologists spent 10 years comparing dead toads from museums with live toads from 11 sites throughout the Democratic Republic of the Congo to the deadly viper. First, the researchers noticed that the toad’s body has a triangular shape...
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