The last extinction occurred 65 million years ago when it is believed that a six mile wide asteroid hit the earth killing off the dinosaurs. Many scientists agree that the next mass extinction might happen sooner rather than later– as in, it’s already underway.
Scientists believe that one-third of freshwater mollusks, sharks and coral reefs are well on their way to vanishing from our waters. Moreover, a quarter of our mammals, a fifth of our reptiles and a sixth of our birds are on their way out too. And every time another species goes extinct, we are all witnessing something we shouldn’t be able to witness. Read the full story from the Canadian Wildlife Federation.