Biodiversity across much of Earth has dropped below safe levels due this to human activity. Here are some of the species we've lost this century. We must take immediate action to combat this trend of biodiversity loss.
Paraceratherium is an extinct genus of gigantic hornless rhinoc-eros-like mammals endemic to Eurasia & Asia during the Oligocene epoch. It is regarded as the largest land mammal known, w/the largest species having an estimated mean adult mass of 12 tons.
Extinct: Great Auk: These auks were flightless penguins from the Atlantic. They were one of the largest auks standing about inches high. They had white and glossy black feathers, and were once seen in huge numbers in the northern frigid areas.