Human activity has been found to be the reason why a host of large animals have gone extinct in the last 50,000 years. Climate change has often been blamed for these animals vanishing from the ...

Humans will cause so many mammal species to go extinct in the next 50 years that ... the next 100 years. The five other times a mass extinction has occurred over the past 450 million years ...

However, the observed rate of extinction has accelerated dramatically in the last 50 years ... Typically a species becomes extinct within 10 million years of its first appearance.

The boy who shot Buttons didn't realize she was a passenger pigeon, and he didn't claim responsibility until 70 years after the incident. The last captive ... of both the extinct species and ...

Should we bring extinct species back to life? Sometimes whole species of animals or plants become extinct due to the changes in their habitat, predators or disease. But over the last 500 years ...

“Shirauo” icefish that were thought to have died out in the capital more than 50 years ago are in fact thriving ... species says the species went extinct in Tokyo in or around 1970.

Conservation groups said 80 species were known to have gone extinct, 16 in the last year ... fish have fallen by three-quarters in the last 50 years. Over the same time period, populations of ...