Exquisite fossil finds shed new light on the `Cambrian explosion`, when oceans first filled with ...
(WorldNews Environment)

Dotted Yeti / shutterstock The most recent 12% of time on Earth is a striking anomaly when compared with the great bulk of our planet´s evolution. After 3 billion years or more of Earth as a microbial world, cells found ways to grow and assemble in their millions to build eyes, guts, muscles, nerve systems with brains, skeletons and the rest of the complex structures that form the mobile, sentient, marvellously various animals that fill our now familiar world. The speed of this transition, seen by geologists in the sudden appearance of complex fossils such as trilobites in layers of rock, seemed so shockingly abrupt that it amazed and worried even Charles Darwin . As this flowering of...