Researchers discovered that a 215-million-year-old reptile started life on four legs and switched to two as an adult.
A "peculiar" ancient relative of the crocodile which experts believe began life on four legs before, in adulthood, it learned how to walk on just two has been revealed in a new study. Named ...
Researchers believe these creatures started out on four legs and later began walking on two legs as they grew.
Fossils reveal a small ancient reptile related to crocodiles, Sonselasuchus cedrus, that may have switched from four legs to two as it grew.
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