First documented snow leopard quadruplets caught on camera in Mongolia

ULAANBAATAR, Mongolia, Dec. 23 (UPI) -- The World Wildlife Fund released wildlife camera footage showing the first documented set of snow leopard quadruplets in Mongolia.

The WWF released footage this week the nonprofit said was filmed by a wildlife camera in Mongolia in September of this year.

The video shows the four cubs playing under the watchful eye of their mother.

WWF officials said researchers have previously observed mother snow leopards in the region with one, two, or three cubs, but the footage filmed in September marks the first time they have seen a set of snow leopard quadruplets.

Snow leopards are considered endangered, with only an estimated 4,080-6,590 remaining in the wild.