By Mongabay.com The hoary fox can often be spotted sprinting through Brazil’s Cerrado, the world’s most biodiverse savanna.

Dozens of Australian mammal species have declined and gone extinct since European colonisation – and introduced predators are often blamed. But evidence is lacking.

The nonprofit research group is grappling with a key question: How many of the foxes are left? “When a species is really rare, it’s very helpful to count them, but also extremely difficult ...

The San Joaquin kit fox was listed as endangered in 1967, according to the U.S. Fish and Wildlife Service. Photo from Heather Bell / U.S. Fish and Wildlife Service The species averages 20 inches ...