Sorry, you need to enable JavaScript to visit this website.

Skip to content Skip to navigation

Algae and bacteria hogged oxygen after ancient mass extinction, slowing recovery of marine life

After the biggest mass extinction in Earth's history – 250 million years ago – algae and bacteria in the ocean rebounded so fast that they consumed virtually all the oxygen in the sea, slowing the recovery of the rest of animals for several million years.

March 24, 2011