Is Earth Experiencing a Mass Extinction Event?

A major taxonomic review of non-passerine birds (non-perching or non-songbirds) by the International Union for Conservation of Nature (IUCN) recognizes 13 new extinct birds due to fossil finds or splitting species.

In total, the new list now recognizes that 140 birds have gone extinct since the year 1500 AD. This means that in the last five centuries, the world has lost more than 1 percent of its bird species, according to a Mongabay report.

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