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Dunkleosteus, the Largest Fish that Ever Lived

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10 meter (33 foot) long Dunkleosteus terrelli, which lived about 400 million years ago, was the largest fish on Earth. This giant vertebrate weighed up to 4 tons. It could bite with a force of 5000 newtons (1100 pounds) in 1/15 of a second. The speed with which it opened its jaws would have created a current that drew fish into its mouth. The teeth of Dunkleosteus were self-sharpening. Dunkleosteus belonged to a class of ancient prehistoric fish called Placoderms. These fish had heavy armor, and therefore probably could not swim very fast. The Placoderms were some of the earliest fishes with jaws. They also may have been among the first vertebrates to reproduce by internal fertilization.

Facts about Dinosaurs

To say the least, dinosaurs were very fascinating animals. There is a list of dinosaur facts that you may find quite interesting.

Dinosaur Facts:

•The oldest dinosaur fossils found on Earth are about 230 million years old.

Roughly 700 species of Dinosaurs have been named. Estimates suggest that there could be as many as 700 to 900 more species of Dinosaurs yet to be discovered.

•The average dinosaur was about the size of an elephant but some dinosaurs were as small as chickens.

•The largest dinosaurs were over 100 feet long.

•Some dinosaurs had feathers.

•When dinosaurs first appeared, the Earth’s continents were still connected. This supercontinent was called Pangea.

•The word “dinosaur” was coined by Sir Richard Owen. Dinosaur means ‘terrible lizard’.

•While multiple theories exist, it is still unknown how dinosaurs became extinct.

•At the time of the dinosaurs extinction, nearly 50% of all animal species also became extinct.

Gigantopithecus, the Largest Ape that Ever Lived

Gigantopithecus blacki, at 3m (9.8 ft) tall and weighing up to 540 kilograms (1,200 lb). Two to three times larger than a gorilla, it was the largest ape to ever walk the Earth. This huge creature's habitat was around China, India and Vietnam. It was incredibly strong and its massive bulk kept it safe from local preditors, tigers, leopards and black bears. Gigantopithecus blacki lived between 300,000 to 1 million years ago and ate the tough grasses found in South East Asian forests. Although it is not known why Gigantopithecus died out, researchers believe that climate change and resource competition with better adapted species were the main reasons. It has often been claimed by people who research and search for hidden animals from local and ancient legends that a type of Gigantopithecus blacki are the source of tales regarding creatures such as Bigfoot and the Yeti.




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