Share 'Biologist warn of early stages of Earth's sixth mass extinction event'

Date: July 24, 2014 Source: Stanford University Summary: The planet's current biodiversity, the product of 3.5 billion years of evolutionary trial and error, is the highest in the history of life. But it may be reaching a tipping point. Scientists caution that the loss and decline of animals is contributing to what appears to be the early days of the planet's sixth mass biological extinction ev…