Strange story about crocodiles

Crocodile is a large reptile that was present on the earth at the same time as dinosaurs, about 240 million years ago. Crocodile can live both on land and underwater. Large crocodiles can be dangerous to humans.

1. The biggest crocodile

The largest crocodile species is a species that lives in saltwater (also known as Crocodylus porosus ), which has been found by scientists in India, Northern Australia and Fiji. This crocodile is 7m long and weighs 1 ton. But with a length of 5m, their weights only reach 0, 5 tons. However, this crocodile's eggs are still not different from goose eggs !!!

2. The smallest crocodile species

The smallest species is a dwarf crocodile (called Osteolaemus tetraspis ) in Central Africa, the maximum length is only 1, 9 m. This is a crocodile species that is more terrestrial than other species. The body of the dwarf crocodile is black and a armor plate not only protects it from injury but also helps to prevent animals from being burned by the heat.

Dwarf crocodile

3. "Crocodile tears: Real, damaged?

"Crocodile Tears " is a familiar phrase, used to describe someone's false suffering. This saying comes from an anecdote that reptiles cry when they eat people. Believe it or not, the phenomenon of small crocodile tears while they are eating is real . But perhaps they are not "crying" due to repentance, but due to some physiological causes that cause their eyes to water and drip into drops. The air is pushed into the sinuses mixed with tears in the lacrimal glands, causing all of the water to pour into the eyes, and creating a " fake" crocodile phenomenon.

4. Crocodile skin: USD 15,000 / set

Crocodile skin is considered one of the best materials: both soft and flexible, very durable. In many nations, crocodile skin is used as a symbol of high status in society. But only the skin on the crocodile belly has these characteristics; The skin on the back has bone, so it is possible to block the shot, spear and bullets.

A set of pure crocodile skin worth up to $ 15,000. The value of the large crocodile skin has made the thief catch a thorn and it is today, among 23 species of crocodiles and many other relatives of the species are threatened, a large number have been slaughtered. to get skin. Therefore, farm crocodile farming also plays a big role in the salvation of this reptile.

A veterinarian was attacked by a crocodile and bit his arm.Photo taken at a Taiwan Shoushan zoo on April 11, 2007 (Photo: nationalgeographic.com)

5. The cult of the crocodile

In some places, crocodiles play a big role, dominate many aspects of human spiritual life, crocodiles are symbols of the universe, the country, the soul of dark things , but also periodic things interesting. Crocodile is also a symbol of prosperity that can make plants grow around. Crocodile is associated with things rising from the ground, such as swamps, rivers and streams should be sacred worship as underground power of the earth. Because of the abundance and the unknown, many places crocodiles also mean it with abundant wealth, redundancy and potential.

Some ethnic groups have worshiped alligators (like the ancient Egyptians). For some tribes in New Guinea, crocodiles are a nest and ordinary people form this species on their bodies.

Aboriginal Australians are very good at hunting crocodiles, but for some crocodile hunting is a taboo.

6. Seasonal aggression

Crocodile shows the most aggressive in mating season (depending on the monsoon).

Male crocodiles are quite loud. In the breeding season, they emit sounds comparable to the engines of small planes, which can spread many kilometers in the water. They attract females and of course, other males are jealous. Very quickly, dozens of other males came in and competed with each other to sing powerful words, sometimes shaking the water above their backs, causing the water to shot up in astonishment.

7. Healthy teeth

Each crocodile has 24 sharp teeth used to hold and crush, not to chew food. Teeth are replaced continuously throughout the life of the species. Crocodiles can create a huge pressure when closing their jaws, but the force to open the jaw is very weak. The healthy teeth of alligators are also very sensitive, they act like pencils when they take their children out of the nest. However, we still have to be wary of their tails, it can hit you with that pain!

Strong teeth (Photo: internet)

8. Sweating from . mouth

Many times we see this reptile opening its mouth on land. However, this is not a provocative gesture of them, but rather the crocodile makes its own cool: by letting sweat escape through the mouth.

9. Live on land and under water

Crocodiles have a heart of 4 breeds in birds (two species have the closest relatives), and mammal breeds because they can live in both shallow and shallow environments. When diving underwater, crocodile heart acts like the heart of other reptiles: 3 compartments. Thanks to that, they can stay underwater for a long time without drowning!

10. Differentiate crocodiles

How do you distinguish an African crocodile and an American crocodile? If you do not know much about the shape of these two species, you should observe their mouth : African crocodile has a fourth tooth in the lower jaw that is easy to observe even when the mouth is closed (American crocodile shows only a small groove when their mouths close).

Because African crocodiles have a saline gland in their mouths, they can withstand seawater, American crocodiles do not. That's why, many species of American crocodiles are concentrated in mangrove forests, estuarine swamps. American crocodiles are often more agile and aggressive than other species, but have poor cold tolerance (so they often live in tropical regions).

The Nile crocodile is the most dangerous species

11. Eyes bright in the dark

When you look at the lights at night in areas where alligators live, you'll see two very small red dots. These are the eyes of this reptile. Crocodile eyes contain crystals that reflect light and help them see in the dark.

12. Great fast

99% of alligators are eaten in the first year of life by larger fish, even mature crocodiles . In the first weeks of life, baby crocodiles eat leftovers from their parents. . Crocodile eggs are lizards, hyenas, big storks and even . humans love it! A female crocodile can lay between 20 and 80 eggs. This egg is incubated in a nest made of trees and is embraced by the mother for 3 months.

A crocodile can reach a length of 1.5 m in a year. But in nature, lack of food, crocodiles take up to 3 years to reach the same length.

13. Endurance

Crocodiles can swim at speeds of 40 km / h thanks to the help of a very strong tail, and can stay underwater for 2 to 3 hours. On land, they can run at great speeds, but are easily lost soon after. They can also make jumps a few meters into the water.

14. Relatives of dinosaurs

The first crocodiles appeared about 240 million years ago, at the same time of the appearance of dinosaurs (relatives). At that time, the new crocodiles were less than 1 meter long and walked on two legs! That is why, crocodiles still have big hind legs today than the front legs.

Crocodile species are also inherited a long muzzle and strong teeth from dinosaurs (Photo: internet).

15. Life expectancy

Crocodile can live up to 80 years!