Not yet extinct, but getting there: experts estimate only 10 of this endangered species remain. Here's a list of the top 10 ...

A. Interestingly, the answer to this question changes every year, possibly every day. Of all the species that have gone extinct naturally through the ages, a point was reached when only one or two ...

24/7 Wall St. has compiled a list of the rarest and possibly extinct animals based on data from the IUCN’s red list. Most of the animals on this list have estimated populations of 250 or fewer.

A Guam rail, a strong contender for the world's rarest animal (SPL) Very rare species may also persist only in captivity. The Red List currently reports 32 such species.

Other rare, ‘hardly ever seen’ animals. Mountain lions, also referred to as cougars, number in the thousands in Texas. Despite the cat being an apex predator, ...

Americans celebrated the 50th anniversary of the Endangered Species Act late last year, serving as a reminder of the 1,662 domestic and 638 foreign species it protects. The act is credited with saving ...

Not yet extinct, but getting there: experts estimate only 10 of this endangered species remain. Here's a list of the top 10 rarest animals on earth.

Americans celebrated the 50th anniversary of the Endangered Species Act late last year, serving as a reminder of the 1,662 domestic and 638 foreign species it protects. The act is credited with saving ...