Crocodiles - 25 Interesting Facts about Crocs

25 INTERESTING FACTS ABOUT CROCODILES

1.  Crocodiles can reach (5) feet (1.5 meters) in length in just one year.

2.  During mating season, crocodiles display increased aggression. 

3.  An adult crocodile has 64 teeth that are meant to grasp and crush, not chew. They swallow stones that grind food inside their stomachs, and also act as ballast.

4.  Their infant mortality rate is very high.  95% of crocodile offspring are eaten in the first year after birth, by other predators.

5.  Crocodile skin is considered one of the finest and is treasured for its durability and softness.  It's a sign of status in tribal societies.

6.  Some tribes worship the crocodile.  This is true of the tribe in New Guinea (where they cut themselves to look like the skin of a crocodile), and it's true of the ancient Mayan people of Belize. 

7.  They are the biggest reptiles on earth.  Saltwater crocodiles are the biggest reptiles in the world.  They can grow up to 20 feet in length and can weigh more than a ton.

8.  There is also a species called "Dwarf Crocodiles".  The smallest crocodile is the dwarf crocodile (measuring 4.9 to 6.2 feet) in length. 

9.  Crocodiles live all over the globe, except for Europe.

10. Crocodiles are closely related to dinosaurs and birds.  

11.  Crocodiles really do produce tears.  This is because, while they are eating, they swallow too much air, which gets in touch with their lachrymal glands (the glands that produce tears) and forces tears to flow.  But it's not actually crying, and crocodiles do not weep when they eat their prey. 

12.  Crocodiles can keep their jaw open under water.  This because there is a valve at the back of their throats, allowing them to open their jaw underwater.

13.  They have an average lifespan of 30-40 years, but in the case of large species, they can live on an average of 60-70 years.

14.  Their ancestors were much bigger.  While this is true, crocodiles are very closely related to dinosaurs.   The prehistoric crocodiles were much bigger than today's counterpart.

15. Saltwater crocodiles have the strongest bite.  A saltwater crocodile can slam his jaw shut using 3,700 pounds per square inch of pressure.  To give you a comparison, a lion can bite with the force of 1,314.7 pounds per square inch of pressure.  Despite this enormous bite force, their muscles to open the jaw are extremely small and weak, that is why a human can use their hands to keep a crocodile's mouth closed. 

16.  Crocodiles have good night vision.  Their night vision is very good and they are mostly nocturnal hunters. 

17.  The crocodile heart is very sophisticated.  Of all animals in the animal kingdom, the crocodiles has the most sophisticated heart.  It can actively change the destination of blood that flows through it depending on requirements.

18.  Crocodiles carry their hatchlings in their mouth.  Crocodiles carry their babies to the water in their mouth.  Baby crocodiles can make noises from inside their eggs before they hatch.  The mother can hear their voices, then digs up the eggs from the sand, and takes the hatchings to the water.

19.  They can find their home from long distances.  Crocodiles may possess a homing instinct.  Crocodiles when tracked in Australia, were relocated, but returned to their original locations within three weeks (information obtained from tracking devices attached to each one).

20.  They are good swimmers.   Their top speed swimming is 15 mph.

21. Their feet are webbed.  Crocodiles have webbed feet which, which they do not use for swimming.  They tuck their feet to the side while swimming and use the power of their tails, which allows them to make fast turns and sudden moves in the water.

22. They are cold-blooded.  Like other reptiles, crocodiles are cold-blooded.  So, they have a very slow metabolism, which allows them to survive long periods without food.  They can survive many months on a single large meal.

23.  They cannot sweat.   Crocodiles do not have sweat glands and release heat through their mouths.  They often sleep with their mouths open.

24.  Crocodiles don’t chew their food. Many large crocodilians swallow stones, which may act as ballast to balance their bodies or assist in crushing food, similar to grit ingested by birds.

25. Crocodiles are amphibious.  They are amphibious reptiles, spending part of their time in water and part of their time on land.  Although the saltwater crocodile and the American crocodile are able to swim out to sea, no living species of crocodilian can be considered truly marine.

Common misconceptions about crocodiles - Here are some misconceptions about crocodiles:

• Contrary to the common myth, crocodile skin is not bulletproof.
• You can not outrun a crocodile.  They can run as fast as a racehorse.  This is not true.  A racehorse can run faster than 40 mph with a record top speed of 43.97 mph.  Crocs cannot get anywhere near that fast on land. Their maximum speed is 12 mph (19 km/h) on land, and for a very short distance.
• Egyptian plover, also known as the “crocodile bird” does not clean crocodile’s teeth. No bird clean crocodile teeth. This is a pure myth. The photos showing Egyptian plover cleaning crocodile teeth are fake.
• Neither crocodiles nor alligators eat their babies (no crocodilian does that).  If you see a crocodile with hatchlings in its mouth, it's because they are taking their babies to the water. 
• Crocodiles are not dumb. While the brain of a crocodilian is fairly small, it is capable of greater learning, more than most reptiles.  They have the ability to remember details and facts about their surroundings.

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