Extinction warning for endangered giraffes

The giraffe, the tallest land animal, is now at risk of extinction, biologists say.

Because the giraffe population has shrunk nearly 40 percent in just 30 years, scientists put it on the official watchlist of threatened and endangered species worldwide, calling it "vulnerable". That's two steps up the danger ladder from its previous designation of being a species of least concern. In 1985, there were between 151,000 and 163,000 giraffes but in 2015 the number was down to 97,562, according to the International Union for the Conservation of Nature.

At a biodiversity meeting on Wednesday in Mexico, the IUCN increased the threat level for 35 species and lowered the threat level for seven species on its "Red List" of threatened species, considered by scientists the official list of what animals and plants are in danger of disappearing.