The mosasaur may have occupied a similar niche to modern-day saltwater crocodiles
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The mosasaur may have occupied a similar niche to modern-day saltwater crocodiles
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A giant ocean predator that terrorised the seas during the time of the dinosaurs may have also hunted in rivers, a tooth fossil discovered in North Dakota suggests.
Species is second-largest predator known from Patagonian fossil site
Finding indicates extinct forms of mosquitoes coexisted with modern ones during the dinosaur era
Study of fossilised beaks shows patterns of wear and suggests some ancient species were up to 19 metres long
Dinosaur and its cousins were dominant predators in South America, study finds
Layer by layer, researchers revealed the jaws of an ancient predator.
Species susceptible to population declines from increased fishing, researchers warn
