Mosasaurs, giant marine reptiles that existed more than 66 million years ago, lived not only in the sea but also in rivers. This is shown by new research based on analyses of a mosasaur tooth found in ...
A tooth recently found in the famous Hell Creek formation in Montana suggests otherwise. According to findings published on ...
Scientists have discovered a 151-million-year-old fossil fly in Australia that challenges ideas about insect evolution. Named ...
A 430-million-year-old fossil reveals that the first leeches were ocean predators, not bloodsuckers. The discovery radically shifts the timeline of leech evolution by more than 200 million years.
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