A mass extinction event is a term used to describe a large-scale event that wipes out species. It is usually not a short, one-time incident but rather something that occurs over thousands or millions ...

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 ...

Some experts believe that we're already in a sixth mass extinction event, but given the numbers, others aren't so sure.

The planet is on the precipice of the sixth mass extinction event. Unlike previous mass extinctions caused by natural events such as asteroid collisions, volcanic activity, and climate change, the ...

For years, headlines have warned that Earth is entering its sixth mass extinction, but a new study suggests these fears may ...

Humans have wiped out hundreds of species — with many more on the brink or experiencing large declines in population. Some scientists have argued that we have entered a “sixth mass extinction” event ...

(CNN) — Humans have wiped out more than 100 species — with many more on the brink or experiencing large declines in population. Some scientists have argued that we have entered a “sixth mass ...