Eons: How Earth's First, Unkillable Animals Saved the World
They have survived every catastrophe and every mass extinction event that nature has thrown at them. And by being the little, filter-feeding, water-cleaning creatures that they are, sponges may have saved the world. Part of the "Eons" series.
Media Details
Runtime: 10 minutes 11 seconds
- Topic: Science
- Subtopic: Ecology, Marine Life, Prehistoric Life
- Grade/Interest Level: 10 - 12
- Release Year: 2019
- Producer/Distributor: PBS Digital Studios
- Series: Eons
Related Media

Eons: The History of Climate Cycles (and the Woolly Rhino) Explained

Eons: The Hellacious Lives of the "Hell Pigs"

Eons: When the Synapsids Struck Back

Eons: When Ichthyosaurs Led a Revolution in the Seas

Eons: When We Met Other Human Species

Eons: How Volcanoes Froze the Earth (Twice)

Eons: How Earth's First, Unkillable Animals Saved the World

Eons: When Giant Deer Roamed Eurasia

Eons: Was This Dinosaur a Cannibal?

Eons: The Missing Link That Wasn’t