The U.S. ranks 2nd in extinct mammals

According to data gathered in the 1990s and reported by the World Resources Institute, there are thirteen extinct mammal species in the U.S., which makes the United States rank second out of one-hundred-ninety-six-countries ranked in that category. Australia ranks first, with twenty-seven extinct mammal species.

The U.S. ranks 6th in endemic mammals

According to the World Resources Institute, there are 104 endemic mammal species in the United States, which makes the United States rank sixth in that category. Australia ranks first, with 225 endemic mammal species.

The U.S. ranks 15th in endangered mammals

According to the World Resources Institute, there are forty-one endangered mammal species in the United States, which makes the United States rank fifteenth in this category. Indonesia ranks first, with 146 endangered mammal species.

There are 1,094 endangered mammal species in the world as a whole.

The U.S. ranks 6th in mammals

According to the World Resources Institute, there are 104 endemic mammal species in the United States, which makes the United States rank sixth in that category. Australia ranks first, with 225 endemic mammal species.