Q:

Were there any dinosaurs that swam?

A:

Quick Answer

True dinosaurs were not swimmers. There were a number of very large aquatic reptiles that lived during the age of the dinosaur, but they were not technically dinosaurs. These creatures belonged to one of several other groups, such as ichthyosaurs, plesiosaurs and mosasaurs, which were types of marine reptiles.

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Full Answer

Inherent in the definition of dinosaur is its status as a terrestrial animal. Like other land animals, some dinosaurs, like the baryonyx, may have been able to swim if they found themselves in water, but there is no conclusive scientific evidence to support this. Even massive, long-necked dinosaurs such as apatosaurus, once thought to have spent its entire life submerged in deep water, are, as of 2014, believed to have been terrestrial forest dwellers.

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Related Questions

  • Q:

    Why did the dinosaurs become extinct?

    A:

    There is not sufficient proof as to why dinosaurs went extinct, but experts believe it is related to geological events, diseases, climate change and lack of plant life for sustenance. The last known dinosaurs, according to their fossils, existed about 65 million years ago.

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  • Q:

    How long ago did dinosaurs live?

    A:

    Dinosaurs existed during the Mesozoic Era, first appearing around 230 million years ago and dying out about 65 million years ago. However, scientists largely agree that birds are the direct descendants of dinosaurs. If so, then the dinosaurs did not die off completely, only the non-avian variety did.

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  • Q:

    Where did dinosaurs live?

    A:

    Scientists believe that the earth looked much different during the dinosaur's lifetime than it does today; at the advent of dinosaur life, all of the landmass on earth made up one single super continent known as Pangea. Dinosaurs likely did not live on every part of Pangea, instead concentrating in certain areas, including the land that is now known as Argentina, which is the home of the oldest known dinosaur fossil. Certain dinosaur species may have been localized to certain parts of the world, including the T.Rex, which has only been discovered in fossils found in North America.

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  • Q:

    How long ago did dinosaurs die out?

    A:

    The purported mass dinosaur die off known as the K-Pg extinction event took place during the end of the Cretaceous Period (K) during the Mesozoic Era some 65 million years ago. This scientific theory is based on the study of the fossil record, which shows evidence for the existence of dinosaurs during the Mesozoic Era but not during the proceeding Cenozoic Era. There is a clear line of demarcation, an actual line found in sedimentary rock layers known as the K-Pg Boundary, with the majority of the fossilized remains found below this line belonging to the "Age of Dinosaurs" not appearing in the space above the line, which marks the beginning of the Paleogene Period (Pg), the Cenozoic Era and the "Age of Mammals."

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