Did the first mass extinction turn Earth into a sponge world?
Explore a strange era in deep history when a massive extinction event may have fundamentally reshaped our planet, potentially leaving nothing but sponges to dominate the oceans.
Researchers have identified a critical period in the deep past that may have been defined by the first-ever mass extinction. This event potentially transformed the Earth into what could be described as a 'Sponge World,' where these simple organisms became the dominant force on the planet.
Source: The Second Time Sponges Took Over The World