The Cambrian Explosion: When Life Began?
This episode delves into the Cambrian Explosion, a pivotal period 538 million years ago when complex animal life rapidly emerged in Earth's oceans. Host Tristan Hughes and guest Henry Gee discuss the triggers behind this evolutionary burst, including ocean oxygenation and mineral influx from continental collisions. They explore key innovations like the evolution of the through gut, eyes, and hard parts, examining iconic fossils such as trilobites, the strange Ediacaran fauna, and the earliest known vertebrates like four-eyed fish from the Chengjiang fauna, highlighting how this event laid the foundation for modern animal groups.
