Scientists pitch a T-rex extended universe with new species - The A.V. Club

A new research paper argues there was not one, but three different Tyrannosaurus species

Science is all about refinement. Take Pluto, for example: First a planet, then a dwarf planet, then avenged with a new ninth planet... then potentially one of, like, 150 planets in our solar system? … [+2157 chars]

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