The coelacanth a giant weird fish still around from dinosaur times can live for 100 years, a new study found. … Coelacanths, which have been around for 400 million years, were thought extinct until they were found alive in 1938 off South Africa. Scientists long believed coelacanths live about 20 years.
The primitive-looking coelacanth (pronounced SEEL-uh-kanth) was thought to have gone extinct with the dinosaurs 65 million years ago.
Since the extinction event that wiped out the dinosaurs 66 million years ago, fish have evolved and diversified, leading to the wide variety of fish species we see today. Sixty-six million years ago, it was a tough time to be a dinosaur (since they were, you know, all dying), but it was a great time to be a fish.
Prehistoric fish are early fish that are known only from fossil records. They are the earliest known vertebrates, and include the first and extinct fish that lived through the Cambrian to the Quaternary. The study of prehistoric fish is called paleoichthyology.
Due to its massive size and the fact that its virtually unchanged in the fossil record for 23 million years, DeSouza says the arapaima has become known as the dinosaur fish. And while the species never actually lived during the time of the dinosaurs, its primeval appearance certainly brings the popular image of …
Leedsichthys Leedsichthys is an extinct species of pachycormid fish that lived in the oceans of the Middle to Late Jurassic. It is the largest ray-finned fish known to have ever existed.
Leedsichthys is possibly the largest fish ever, and certainly the largest known bony fish. It is estimated that the largest Leedsichthys could have grown up to sixteen meters.
Paleontologists have discovered fossilized remains of the world’s oldest bony fish, which swam the Devonian seas 400 million years ago. As the earliest known bony fish, Ligulalepis is closely related to our own ancestors.
Greenland shark As for the current holder of the record for oldest fish in the sea, it’s the Greenland shark. A 2016 study examining these cold-water sharks’ eyes found one female estimated to be nearly 400 years oldgood enough to hold the record for the oldest known vertebrate not just under the sea but anywhere on the planet.
No, a rhino is not a type of dinosaur. A rhino, short for rhinoceros, is a horned mammal. Dinosaurs, on the other hand, are a group of reptiles…
Crocodiles. … Modern crocodiles and alligators are almost unchanged from their ancient ancestors of the Cretaceous period (about 14566 million years ago). That means that animals that were almost identical to the ones you can see today existed alongside dinosaurs!
As far as reptiles go, crocodiles are closely related to dinosaurs. But they’re incredibly complex biological organisms that survived the meteor impact that ended the Cretaceous period roughly 66 million years ago and did in their dinosaur relatives.
Coelacanths, a prehistoric fish species, known to hunt dinosaurs, has recently been found alive near the coast of Madagascar in the Indian Ocean. … The coelacanth has a history dating back to 420 million years and is commonly known as four-legged fossil fish.
Amphibians are animals that spend their lives partly in water and party on land. Prehistoric amphibians came from fish about 370 million years ago. Around this time, their fins slowly turned into fully formed legs that allowed them to walk on land. … These animals were the first tetrapods (four-legged animals).
The new species found by Jiang and his team, which they named Cartorhynchus lenticarpus, is the smallest known ichthyosaur-type creature only about 1.3 feet (0.4 m) long.
arapaima The arapaima, pirarucu, or paiche is any large species of bonytongue in the genus Arapaima native to the Amazon and Essequibo basins of South America. Arapaima is the type genus of the subfamily Arapaiminae within the family Osteoglossidae.
Arapaimas survive mainly on fish, but they’re also known to eat fruits, seeds, and insects. Fierce predators, they can also use short bursts of speed to leap out of the water to grab birds, lizards, and even small primates from low-hanging trees.
Arowanas are native to the Amazon drainage system and the western Orinoco, Rupununi and Essequibo systems of the Guianas. They live in both the whitewater and blackwater floodplains of the Amazon. In both types of water, they are most abundant in the flooded areas.
megalodon was not only the biggest shark in the world, but one of the largest fish ever to exist. Estimates suggest it grew to between 15 and 18 metres in length, three times longer than the largest recorded great white shark. … In fact, the word megalodon simply means ‘large tooth’.
Megalodon is NOT alive today, it went extinct around 3.5 million years ago. Go to the Megalodon Shark Page to learn the real facts about the largest shark to ever live, including the actual research about it’s extinction.
The arapaima is found in Brazil, Peru and Guyana. They live in the slow-moving and typically oxygen-deficient rivers of the Amazon River basin floodplain. In the wild, the arapaima eats mostly fish but is also known to eat fruits, seeds, insects, birds and mammals found on the surface of the water.
The Megalodon has been compared to the whale shark (around 12.65 metres, or close to 41.50 feet) and the scientific community has determined that Megalodon was larger, based on both weight and length. Megalodon was also far bigger than the great white shark, which would only be around half of Megalodon’s size.
They had air pockets in their bones, which lightened their weight and kept them from collapsing as they grew larger. They also had very efficient lungs, so their respiration and heat exchange could better support the larger size.
This data suggests that mature adult megalodons had a mean length of 10.2 metres (about 33.5 feet), the largest specimens measuring 17.9 metres (58.7 feet) long. Some scientists, however, contend that the largest forms may have measured up to 25 metres (82 feet) long.
There is nothing new about humans and all other vertebrates having evolved from fish. … According to this understanding, our fish ancestors came out from water to land by converting their fins to limbs and breathing under water to air-breathing.
No!After the dinosaurs died out, nearly 65 million years passed before people appeared on Earth. However, small mammals (including shrew-sized primates) were alive at the time of the dinosaurs.
Dinosaurs were a successful group of animals that emerged between 240 million and 230 million years ago and came to rule the world until about 66 million years ago, when a giant asteroid slammed into Earth. … Some meat-eating dinosaurs shrank over time and evolved into birds.
Clocked at speeds in excess of 68 mph , some experts consider the sailfish the fastest fish in the world ocean. Easily recognized, sailfish are named for the spectacular sail-like dorsal fin that extends for nearly the entire length of their silver-blue body.
During the Cambrian period, the first fish-like creatures (although definitely not recognized as true fish by paleontologists) appeared, around 530 million years ago. The Pikaia, which looked more like a worm than a fish, is perhaps the earliest ancestor of fish.
bowhead whale The longest living mammal is the bowhead whale, which can live up to 200 years. Also known as the Arctic whale, this animal is big, and lives in cold waters so its metabolism is slow. The record age for a bowhead is 211 years.
