An enormous sea snake from Norse legend that was fathered by the trickster god Loki and grew big enough to circle the globe is now the namesake for a different type of “monster” — a newly discovered ...

Mosasaurs are extinct marine lizards, spectacular examples of which were first discovered in 1766 near Maastricht in the Netherlands, fueling the rise of the field of vertebrate palaeontology (the ...

A 94-million-year-old fossil found in Utah is offering new insight to the evolution of an ancient sea-dwelling reptile. Illustration from Utah’s Bureau of Land Management A 94-million-year-old fossil ...

Add Yahoo as a preferred source to see more of our stories on Google. Mosasaurs, extinct marine reptiles that dominated Earth's oceans during the Late Cretaceous period, have fascinated scientists ...

A team of researchers has identified a new species of mosasaur, an extinct aquatic reptile that dominated the oceans during the late Cretaceous period. This discovery, named Jormungander walhallaensi ...

Scientists have discovered a new species of mosasaur, a sea-dwelling lizard from the age of the dinosaurs, with strange, ridged teeth unlike those of any known reptile. Along with other recent finds ...

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Imagine swimming in the ocean and suddenly spotting a creature larger than any shark, faster than any human can sprint, and more vicious than any predator alive today. Meet the Mosasaurus, a marine ...