Farther back in our planet’s history, volcanic eruptions, rapid climate change, and plummeting oxygen levels have caused at least four additional mass extinctions, with smaller pulses of biodiversity ...
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Current extinction rates haven't reached level of 'mass extinction' just yet, study suggests
Hundreds of species have gone extinct in recent centuries, but losses are few among larger classification levels, meaning we are not witnessing a mass extinction just yet, according to a study ...
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