A 165-million-year-old fossil contains clues to the mouth and throat structures that help modern mammals drink milk. The ...
On quick glance, the fossil unveiled Tuesday at a Manhattan auction house looks like an undersized Tyrannosaurus rex, with ...
A new review argues that a tiered panel of bioethical models, from human cell lines and neural spheroids to brine shrimp and sea urchin embryos, can replace vertebrate testing and improve risk ...
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