Litter of lynx kittens is first documented in Colorado since 2006, heartening biologists

This is an undated photograph taken in May 2009 at an undisclosed located and supplied by the Colorado Division of Wildlife that shows a lynx kitten, which is one of 10 born this spring in Colorado, according to researchers. The discovery of the kittens after finding none the last two years and the location of some of the newborns outside what is considered the cats' core area have buoyed the hopes of biologists overseeing the restoration of the long-haired mountain feline to the Centennial State. (AP Photo/Colorado Division of Wildlife)

DENVER (AP) — The discovery of 10 lynx kittens this spring marks the first newborns documented in Colorado since 2006, heartening biologists overseeing restoration of the mountain feline.

Biologists found no kittens the past two years, possibly partly because of a drop in the number of snowshoe hares, the cats' main food source.