Our blue planet is home to countless creatures, some well-known, others still shrouded in mystery. From tiny tardigrades to massive blue whales, the diversity of life today reflects billions of years ...
A diorama of some of the earliest animals on Earth. Image via Wiki Commons. An ancient fossil bed in Mongolia preserves tiny ...
Animals seem to appear in the fossil record fairly suddenly, a little over half a billion years ago. Yet rocks can preserve microscopic life in remarkable detail and still contain no animals, even ...
The Cambrian explosion may have been fueled by poop. The first animals on Earth emerged about 600 million years ago, and 60 million years later, those simple early animals evolved in wildly different ...
The oldest known animal fossils are about 574 million years old, but the fossil record is too sparse to reveal when Earth’s ...
A spectacular fossil site in Canada contains 567-million-year-old creatures that may represent some of the earliest animals to move, reproduce sexually, and develop recognizable body plans. The ...
An artist's reconstruction of the seafloor in Namibia, West Africa, 543 million years ago. . | Credit: Museum of Natural History, University of Oxford / Mighty Fossils. The first animals may have ...
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