Crocodiles are terrific creatures most of us would not want to be friends with. It is an interesting fact they are among the first creatures on earth. This horrific reptile managed to escape evolution and also the mass extinction which occurred 65 million years ago.
Here are more facts about crocodiles.
Average lifetime of crocodile is 80 years.
The oldest crocodile ever had an age of 115 years who resided in Russia and expired in 1977.
Crocodiles sweat through mouths
You might have seen the crocodiles on National Geographic, opening their mouth for a few seconds and it is quite a scary sight. An interesting thing is they do not open their mouth in aggression, rather they open it to cool off in the heat.
Crocodiles use stones for digestion
Their teeth do not serve the job of chewing, they can only crush and grasp the food. For digestion, these reptiles swallow stones to grind food in their stomach.
Crocodiles ‘cry’
You are well aware of ‘crocodile tears’, this is not only an idiom or phrase, crocodiles do shed tears. Tears appear on crocodiles’ eyes when they feed. They do not feel pain or something. It is just a physical reaction of their body to the air pushed thru sinuses and triggering tear glands. So they do not cry because of sadness or guilt those tears are “fake tears”.
99 % babies do not survive
Tears appear on crocodiles’ eyes when they feed. They do not feel pain or something. It is just a physical reaction of their body to the air pushed through sinuses and triggering tear glands. So they do not cry because of sadness or guilt, those tears are “fake tears”.
Crocodiles do not have skin
Instead of skin they have so-called osteoderms of their backs (type of bones), those bones so hard that can easily withstand bullets, spears and arrows.
Crocodiles have four heart chambers
Similar to birds, crocodiles have 4-chambered hearts which let them be as active as they are. However when the reptile is under the water, its heart acts like a three-chambered one to enable the crocodile stay longer without air.
They have eye crystals to reflect moonlight
This is the reason all you can see in darkness is a pair of shiny red dots.
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