Earth in the midst of sixth mass extinction

July 24, 2014 6:04 PM

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Earth in the midst of sixth mass extinction

The loss and decline of animals around the world — caused by habitat loss and global climate disruption — mean we're in the midst of a sixth "mass extinction" of life on Earth, according to several studies out Thursday in the journal Science.

One study found that although human population has doubled in the past 35 years, the number of invertebrate animals – such as beetles, butterflies, spiders and worms – has decreased by 45% during that same period.

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