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As soon as they evolved. Living things have always evolved and died out, and new species evolved to take their place. It's the way nature works.
About 350 kilograms. The better known fibulasaurus weighs about 200 kilograms. Both were extinct by the time other large land animals evolved.
During the last geological time period, the Cenozoic era the dinosaurs became extinct. As the smaller mammals we able to survive the humans evolved.
Dinosaurs existed because a group of archosaurs evolved to have legs directly underneath the body, a defining trait of the dinosaurs. They may have become so diverse because at the end of the Triassic, a mass extinction opened up many niches, and dinosaurs were able to evolve quickly enough to fill them. Modern birds later evolved from dinosaurs.
No, the lynx is not extinct.
One observation that Darwin made was the fossilized armadillos and these fossils closely resemble, but were not identical to, the armadillos living in the area. Another observation he made was the fact that the plants and animals of the Galápagos Islands resembled those of the nearby coast of South America.
dinosaurs arent extinct just like humans they evolved into birds and lizards
eoraptor did not went extinct they have all evolved in the begeining of the jurrasic and later in late jurrasic they have evolved into the birds
they evolved into humans.
A scientist would conclude that the ancestors of the given animal DID have legs, but, that over time, they evolved to become legless. Some examples of this kind of evolution include snakes, whales, dolphins, and the extinct, superficially fish-like icthyosaurs.
Like all dinosaurs, we still do not know how this prehistoric animal became extinct. it evolved though, because it lived in the Jurassic period of the mesosoic, and did not become extinct, but it evolved
Like all dinosaurs, we still do not know how this prehistoric animal became extinct. it evolved though, because it lived in the Jurassic period of the mesosoic, and did not become extinct, but it evolved
they havent gone extinct they have just evolved into humans
They didn't evolve! They went extinct.
Ammonite
They evolved into homo sapiens and then came extinct.
A palaeosubspecies is an extinct species of animal which evolved into its present form.