Alva Review-Courier -

EUREKA, Mo. (AP) — It was just before 5 a.m. and four critically endangered wolves were tucked under a seat on a commercial flight from St. Louis to Arizona.

The Mexican gray wolf puppies, among the most endangered subspecies of the gray wolf in the world, sat piled in a carrier at the feet of a conservationist.

She was on a mission along with a team of others to bring the tiny wolves born in captivity at the Endangered Wolf Center in Eureka, about 30 miles southwest of St. Louis, to two different packs of wild wolves in Arizona and New Mexico that might raise them along with their own.

But pu...