A discovery hidden inside 520-million-year-old rocks has solved an evolutionary enigma and could even rewrite the entire tree ...
Bryozoans are tiny, filter-feeding colonial invertebrates that thrive in the world's oceans today, yet for decades their ...
For more than a century, the Cambrian explosion has served as biology’s big bang: the moment, roughly 538.8 million years ago, when complex animal body plans seemingly burst into the fossil record ...