Species are vanishing quicker than at any point in the last 65 million years
We often speak of endangered/imperiled species in a relatively local context, in terms of wildlife that we might take for granted or might find nearby, here that often means the western U.S. of A. But every once in awhile it helps to learn more about our local situation by considering it within the context of a broader, more generalized perspective.
Globally, species are going extinct at such a rapid pace that many are suggesting that humanity is prompting the Sixth Great Extinction on Earth.
It says a lot about our time and our collective impact/influence. To me, it also suggests a fundamental urgency with which each of us has a moral obligation to become more aware of and act to preserve the plantlife and wildlife, our local communities of life, that contribute to our unique standard of living in so many ways.
End of Alaotra grebe is further evidence of Sixth Great Extinction – Michael MCcarthy – The Independent
Earth’s Five Great Extinctions
65 million years ago (mya) Cretaceous-Tertiary (K-T extinction). Did for the dinosaurs. May have been caused by a meteorite hitting what is now Yucatan, Mexico; 75 per cent of species disappeared.
205 mya Triassic-Jurassic extinction. Did away with competition for the dinosaurs.
251 mya Permian-Triassic (the worst of all). Known as “The Great Dying.” About 96 per cent of marine species and 70 per cent of land species disappeared.
360-375 mya Late Devonian. A prolonged series of extinctions which may have lasted 20 million years.
440-450 mya Ordovidician-Silurian. Two linked events which are considered together to have been the second worst extinction in the list.