Saturday, January 21, 2012

Why crocodiles seen with their mouth open?

                                 Why crocodiles seen with their mouth open?

Its a usual sight to see crocodiles with mouth open. Humans have sweat glands. We sweat when there is excess heat generated in our body.Crocodiles dont have sweat glands in their body. In order to throw away excess heat generated in their body, they keep their mouth open. Same thing with dogs also. We can see dogs wandering with their tongue stretched out.
This is the way they are throwing out the excess heat generated in their body.

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