Not all fish are derived from prehistoric times it was extinct, but there also are still alive and could be seen up to now. That may dipengarhui by the ability of fish can adapt to extreme environmental change. It is also influenced by the ability to find prey and survive from the onslaught of other predators. Well here is a prehistoric fish that are still alive today.
1. Hagfish
According to fossil records, hagfish have been around for more than 300 million years, which means they are old as the dinosaurs take over the world! Found in the waters, these animals are sometimes called slime eels, but they're not familia, eels, and even they may not fish at all.
According to some scientists, they are very strange animals in all cases, they have the skull but did not have a backbone, and they have two brains.
Nearly blind, they eat at night on animal carcasses large (fish, whales, etc.) that fall into the seabed. They use their mucus that can produce substances that Slimey to damage the gills of fish predators; from thence, they have almost no natural enemies.
2. Lancetfish
Lancetfish or fish knife (in Unread Indonesua) has a clear appearance was "very prehistoric", jaw and teeth on display in his back which is very sharp, reminiscent to some of the dinosaurs (although, in this screen lancetfish really an enlarged dorsal fin).
Even the scientific name sounded dinosaurian (Alepisaurus ferox). With a length that reached two meters (6 '6 "), these predators can be found in all oceans except the polar regions; very greedy, they eat small fish and squid, they sometimes also eat a fellow of the community.
3. Arowana
According to an ancient group Osteoglossids, these fish already exist in the Jurassic period. Currently, they can be found on Amazon, and in some parts of Africa, Asia and Australia.
Sometimes kept as exotic pets, the arowana is a voracious predator that can eat the small animals they catch, including birds and bats which they catch in mid flight (they can jump up to 2 meters (6 '6 ") into the air).
In China, the arowana is known as "dragon fish" because of their appearance, and they are considered bearers of luck / Good Fortune.
4. Frilled Shark
There are deep-sea Predator, one of the most primitive living shark shark alive today, They are a relic of the Cretaceous period, when dinosaurs roamed the Earth.
Rarely seen alive, and only recently filmed for the first time, this frilly shark can grow to two meters (6 '6 ") (with larger females than males) and they live in deep water, most food They are squid.
They are not harmful to humans, and the facts reveal, these sharks spend their entire lives without seeing human beings. Only when dead or dying specimens can be seen and recorded by fishermen or scientists.
5. Sturgeon
This fish is already in the early Jurassic era, the sturgeon has been known as one of the main source of caviar (made from eggs or egg masses); because of overfishing, fish armored nan highly endangered population of this magnificent present.
Largest sturgeon species can grow to 6 meters (19 '7 "), as big as the great white shark the most, they feed on small animals from the seabed and not cause danger to humans, unless provoked by (although they are so great, they are not threaten human beings, even hunted down and abused, and even murdered by people who are not responsible!)
6. Arapaima
They are close relatives to arowana (see # 8), Arapaima Amazon sometimes regarded as the largest freshwater fish in the world. According to early descriptions, they can grow up to 4.5 meters (14 '8 ") in length, but this time, big fish like this are rarely found and most Arapaima average adult length of 2 meters (6 '6").
This slow-moving predators that prey on small fish, crustaceans and all the small animals that may come in their mouths. One of the highlights of this fish is that they need to breathe the air, such as cetaceans, to survive.
Arapaima not cause harm to humans and they are often hunted for their meat, unfortunately, they are very rare today. Arapaima that emerged in the Miocene period, has many old families, Osteoglossidae, and therefore its origin can be traced back to the dinosaur age.
7. Sawfish
These animals are the victims of the Cretaceous period, and can be found either at sea or in rivers and creeks, and has been found up to 100 km inland.
With a length Up to 7 meters (23 '), "Saw" they are weapons and sensory organs, covered on the electro-sensitive pores that allow to feel the prey despite a very difficult sight.
Although usually good sawfish can become very dangerous when provoked. Based on an extraordinary fossils, we know that prehistoric giant sawfish may be a staple food for the largest carnivorous dinosaur, Spinosaurus, part of the spine of the fish was found trapped between the dinosaur teeth.
8. Alligator Gar
This thick scaly great predators found in the U.S. south, north and east of Mexico, becoming the largest freshwater fish in North America (though sometimes they wander into the sea). They can grow to 4 meters (13 ') long and weigh up to 200 kg (440 pounds).
Gator Gars their so called, because they look like reptiles with long jaws, armed with two rows of sharp teeth. They are voracious predators that lunge directly and has been known as the Biter superhuman, but no confirmed record of causing death due to current Gator Gars. Gars is one of the oldest fish living today, their origin can be traced back into the Cretaceous period.
9. Polypterus Senegalus
African fish is often called the dinosaur eel, because their appearance resembles a reptile with a serrated dorsal fins, reminiscent of some barbed pungunggnya dinosaur. But they do not include familia eels, they are a member of Familia bichir.
They are often sold as exotic pets, dinosaur eel is often out of the fish tank (Aquarium) them. They can survive out of water for a long time as long as they remain moist skin, which allows them to wander away from the tank (Aquarium) them.
10. Coelacanth
Coelacanth is the most famous of all the "living fossil" and deserve to be no. One in this list, because this is the best example of the Lazarus effect, these are animals that should have been long extinct.
These fish should have been extinct in the Cretaceous period, along with the dinosaurs, but in 1938, a living specimen was caught in South Africa. Since then, examined more specimens have been seen and photographed, and even the second coelacanth species found in Indonesia in 1999.
This is a large predatory fish, with a length reaching 2 meters (6 '6 "), they eat smaller fish, including small sharks, and are usually found in deep, dark waters. Although rarely captured and consumed because it tastes terrible, the king of this highly threatened marine fish populations.
Source :
Apakabardunia.com
