Domedosaurus: This is the extinct sauropod dinosaur, The Domeosaurus. The Domed Dragon lived in the present-day Sahara Desert about 100 million years ago.
Flying reptile Darwinopterus modularis: This flying reptile is called Darwinopterus modularis, and its fossils suggest that this animal may have been an aerial predator about 160 million years ago, specializing in catching small dinosaurs with feathers and small flying mammals.
Megaeye Whale: Scientists speculate that this ancient whale was a ferocious "hunter" who disappeared from the earth 25 million years ago. While they may be the ancestors of modern baleen whales, unlike docile baleen whales, this whale has two rows of sharp teeth and giant eyes that are conducive to predation.
Mammoth: Mammoths are larger than mastodons, with teeth that are curved rather than straight. They disappeared from Earth at the end of the Ice Age, about 10,000 years ago, and scientists have yet to determine whether climate change or human hunting is the culprit responsible for the mammoth's extinction. It has also been suggested that the impact of a comet on Earth caused the mammoth to disappear from earth.
Militosaurus: The fossils of this herbivorous dinosaur's hand reveal a transitional step in the evolution of dinosaur fingers to modern wings. The latest findings promise to dispel the contradiction between the same finger homology between theropod dinosaurs and extant birds. The dinosaur, named Limusaurus inextricabilis, may have been able to use three fingers to help stand upright in a horizontal position. The reconstructed map of the Quaker Dragon shows its degenerated first finger, as well as its strong second and third fingers.
Birds of Terror: Studies have shown that a 7-foot-tall prehistoric bird arrived in North America from South America before the formation of a land bridge connecting the two continents of South America and North America. Scientists speculate that this carnivorous bird could not fly, had a large head disproportionate to its body, and may have reached North America via a series of islands that later formed today's Isthmus of Panama. This is an artistic image of the fauna of North Florida about 2 million years ago. At the bottom left of the picture is the "Scary Bird".
Woolly rhinoceros: Woolly rhinoceros is a plain in what is now the northern German state of Thuringia. It was very cold then, much drier than it is now, and the temperature fluctuated.
California saber-toothed tiger: The average weight of this cat with sharp upper canine teeth, the California saber-toothed tiger (Smilodon fatalis), is about 550 pounds (250 kilograms), which is slightly weaker than the bite force of lions today. Often mistaken for a tiger, the California saber-toothed tiger is a social animal with a weaker bite force than is commonly thought.
Plesiosaurs: Living in Antarctica, they had long necks and four fins. Paleontologists have found shark teeth on plesiosaur fossils, suggesting that plesiosaurs may have been besieged by sharks.
Air Cavity Dragon: This picture is a vivid representation of the ancient carnivorous animal Air Cavity Dragon. Psilocosaurus may have lived 85 million years ago, and in the picture, red represents the lungs and other colors represent air sacs. According to the latest analysis of the fossils of Aerocarpus, the respiratory system of this massive carnivorous dinosaur has many similarities with today's birds, further reinforcing the theory of the evolutionary connection between dinosaurs and modern birds.
Giant Piranha: This is the Giant Piranha paranensis, which is 3 feet long and is the ancestor of the modern piranha.
Prehistoric giant fish: The prehistoric giant fish Dunkleosteus terrelli has sharp front teeth that can tear sharks in half. Scientists say Dunkleosteus terrelli could be the "first king of the beasts" on Earth. This prehistoric fish body is 33 feet long, weighs 4 tons, and lived 400 million years ago.