Cambrian Ocean World by John Foster

https://thebookvoice.com/podcasts/2/audible/187478 to listen full audiobooks. Title: Cambrian Ocean World Author: John Foster Narrator: David Stifel Format: mp3 Length: 16 hrs and 45 mins Release date: 12-27-22 Ratings: 4 out of 5 stars, 11 ratings Genres: Earth Sciences Publisher's Summary: This volume, aimed at the general audience, presents life and times of the amazing animals that inhabited Earth more than 500 million years ago. The Cambrian Period was a critical time in Earth's history. During this immense span of time nearly every modern group of animals appeared. Although life had been around for more than 2 million millennia, Cambrian rocks preserve the record of the first appearance of complex animals with eyes, protective skeletons, antennae, and complex ecologies.