Extinction

Some species saw a slow decline.

The Amur leopard gets a protected habitat in Russia.

Fewer than 40 Amur leopards survive in the wild.

Loss of Australia's 10-foot kangaroos and rhino-size wombats led to changes in landscape and wildfire outbreaks.

A new discovery raises lost hopes for a rare primate.

The western black rhino has gone extinct, mostly because it is poached for its horn.

Broken eggshells and baby bird bones reveal an ancient disaster.

A rundown of the arrows in our planetary defense quiver.

Climate swings and humans are the most likely suspects.

Conservation efforts like captive breeding programs are helping tigers avoid extinction. Will tigers survive?

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Just where the deadly space rock came from is still up in the air.

The so-called 'Nemesis' star has not been flinging dangerous comets at Earth.

Increases in the human population, possibly up to 10-fold, in southwestern France might have pushed the Neanderthals out of the area.

The turtles and their water-loving cousins seem to have survived because of their slow metabolisms, but why did the mammals win out in the end?

How many rats would you kill to save a million seabirds?

Extinction levels from habitat loss may not be as bad as predicted, as evidenced by a lack of observed extinctions.

Land crabs appear to have lived on the Hawaiian Islands until the arrival of humans.

The arm bones of the extinct Tasmanian tiger show they hunted differently than dingoes, which could mean the competition might not have been the major factor leading to their demise in Australia.