Tag Archives | mass extinctions

Biodiversity vital to streams as extinctions rise

As Earth enters a period of mass extinction, a study released on Wednesday offers a new reason to preserve biodiversity: it’s an effective, natural pollution scrubber in streams. Environmental activists have long warned that waning biodiversity means the loss of such ecological services as stream-cleaning, control of pests and diseases and increased productivity in fisheries. […]

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Can we save polar bears by moving them to Antarctica?

Answered by polar bear scientist Scott Schliebe of the U.S. Fish & Wildlife Service. “Although it may seem an obvious solution, the risks outweigh the benefits.” Q. I am writing concerning the plight of polar bears due to sea-ice loss in the Arctic. It occurs to me that one possible way out, that I have […]

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What Triggers Mass Extinctions?

Study Shows How Invasive Species Stop New Life An influx of invasive species can stop the dominant natural process of new species formation and trigger mass extinction events, according to research results published December 29 in the journal PLoS ONE. The study of the collapse of Earth’s marine life 378 to 375 million years ago […]

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