Although the brain tissue has a consistency somewhat like jello, soft and squishy, palaeontologists discovered an intact brain in a 310 million-year-old fossil. Brain tissue is rich in fat, which means it should rot quickly; however, it did not. Russell ...
A Canadian geologist might have just discovered fossils of sponges that date back 890 million years. This discovery might be 350 million years older than the oldest-found sponge fossils. The fossils were found in rock samples, and it seems that ...