Tiny shelled creatures shed light on extinction and recovery 65 million years ago

An asteroid strike may not only account for the demise of ocean and land life 65 million years ago, but the fireball’s path and the resulting dust, darkness and toxic metal contamination may explain the geographic unevenness of extinctions and recovery, according to geoscientists. … > read full article
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Tipping Elements in the Earth System: [...] http://bit.ly/9TqAPJ