So many humans live on Earth, it’s hard to imagine there are animals we haven’t seen for years, decades, or even millions of ...

Earth looked much different not just millions, but even decades and centuries ago. Many animal species that once existed are nowhere to be found. From human activity to climate change, new animals ...

Evolution usually helps a species survive. But sometimes, a trait that once made perfect sense ends up causing real trouble.

In April of 2025, headlines across the world announced that the dire wolf had been brought back from extinction. This 130-150 ...

While conservation efforts have bolstered the populations of many species considered to be threatened in 2025, many animal and plant species continue to dwindle in number, with some even going extinct ...

Before humans made their way to New Zealand, the critically endangered flightless parrot known as the kākāpō likely numbered in the hundreds of thousands. By 1995, their numbers had dwindled to just ...

Debates over responsibility for past species loss generate heat but little light. Moving forward requires context, evidence ...