
#TeachNatGeo: The Big Six Extinctions (one is happening right now)
We’re in the middle of one of the biggest mass extinctions the world has ever seen. There have been five previous major mass extinctions, when more than 75% of all species on Earth vanished. Think about that for a second . . . three-quarters of life on this planet died. Five times. This list includes pictures of iconic species that went extinct during the five major … Continue reading #TeachNatGeo: The Big Six Extinctions (one is happening right now)