#Open Eyes##Number One Weekly#
The recent month of encircling and suppressing crocodile eels can be described as a boiling fire, but also another "eye-opening" haha...
However, I believe that most people do not have this news, they do not know that there are fish such as crocodile eels.
Wait a minute! Is it a fish?
Yes! It's fish!
Although this cargo has a crocodile-like head, it is still a fish! As for why it has a crocodile in its name, it is precisely because it has the same short snout as the crocodile and two rows of dagger-like sharp teeth.
Did the crocodile's head, the fish's body, evolve into a reptile on the way to be interrupted?
Alligator eels live mainly in North America, Central America, and Cuba. It is one of the largest freshwater fish in North America. It belongs to the order Finches.
Its body is covered with a layer of diamond-shaped glaze of hard scales, which is a enamel similar to the teeth, so it is very hard. The Indians in North America would use them as arrows and gems, and meat would be used for food!
Bows and arrows made of scales
Such hard scales cover the body, as if wearing armor. Its fish is long and barrel-shaped, and at first glance it looks like a torpedo! The scales have dark black markings, the snout protrudes, the upper and lower jaws are densely covered with sharp teeth, and the form of a crocodile mouth. Because they live among freshwater fish, they are so large that they are often considered river monsters!
This river monster can grow up to 3 meters long and weigh more than 159 kg
Long and like a torpedo, it can be described as the overlord of the river.
Adult alligator eels, except humans have no way to take it! Its natural enemies are generally in their infancy.
Its ability to reign supreme in the river is due to its terrifying fertility, adaptability and omnivorousness.
Strong Fertility:
Crocodile eels breed and spawn from May to August each year, females lay 140,000 to 200,000 eggs each time but only a few luckily escape natural enemies and successfully hatch, the eggs are pale green, adhering to aquatic weeds or gravel, the incubation period is about 6 to 8 days, the male is about 6 years old sexually mature, and the female is up to 11 years, with a lifespan of 26 to 50 years, the highest record is 75 years.
Their eggs are poisonous, so don't eat it.
Strong adaptability:
The alligator eel is able to breathe air, and a catheter connects its swim bladder to its esophagus, allowing it to obtain surface air that allows it to survive in an environment with low oxygen content. Studies have shown that it can survive two hours away from water.
Miscellaneous foods:
Crocodile eels usually feed on blue crabs and catfish, but also eat waterfowl, turtles, carrion and so on. Anything can be eaten.
The crocodile eel, a fish that existed since the time of dinosaurs, is a very primitive fish, the fossil record can be traced back more than 100 million years, and this monster was founded early in the Cretaceous
Their ancestors were found in sediments dating back about 250 million years ago
So it is not a product of crocodile evolution failure, it has grown like this for hundreds of millions of years, it is a living fossil-level creature!
At last:
In North America, due to the destructiveness of the alligator gar and the occurrence of man-eating incidents, the alligator gar was once over-hunted, so that it eventually became an endangered animal. It has begun to protect it again, and it can only be said that it is very American!
On the mainland, the alligator eel belongs to the alien species, there are not many natural enemies itself, there are almost no natural enemies in us, and those who should be hunted or killed are still to be hunted, but is it appropriate to kill too much waste of social resources, is there no better way?