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What creatures lived next to dinosaur that could breath under water?
Wiki User
∙ 10y ago
Dinosaurs were all reptiles and therefore, land dwellers. None of them could breathe underwater, although marine creatures that lived along side the dinosaurs have similarities to the dinosaurs, they weren't actually classed as dinosaurs. Therefore, no dinosaurs could breathe under the water :)
EDIT
Fish and some amphibians are the only vertebrates that have gills and can breath underwater. The same applies to ancient animals too.
Wiki User
∙ 11y ago
Wiki User
∙ 10y agoMarine creatures such as fish and sharks existed at the same time as dinosaurs and could breathe underwater. Marine reptiles such as mosasaurs, plesiosaurs, and ichthyosaurs lived in the water, but they breathed air.
Wiki User
∙ 12y ago- fish
- shark
- star fish
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