For most of its existence, planet Earth has been a brutal, inhospitable, toxic nightmare, until a half billion years ago when - KABOOM! - life suddenly appeared. First Animals takes you back to the Cambrian Explosion through newly-discovered fossils that tell us more about our own origins. Renowned evolutionary biologist Maydianne Andrade is our guide, showing us how complex - and dangerous - life among the first animals really was.

From the Curio.ca streaming audio-visual collection.