Your morning adorable: Baby eastern black rhinoceros at England's Chester Zoo
England's Chester Zoo is home to more than 7,000 animals, and the youngest of those is this 4-day-old female eastern black rhinoceros. (She's so young that she doesn't even have a name yet.)
Black rhinoceroses -- of which there are four subspecies, including the eastern black rhino -- are listed as critically endangered. It's estimated that slightly more than 4,000 remain, although the species has rebounded slightly since its lowest point in the early 1990s.
As recently as 1970, there were an estimated 65,000 black rhinos in Africa. By 1992, only 2,300 remained -- a 96% drop, due largely to poaching, according to the International Rhino Foundation.
With such a severe population crisis, any new black rhino birth is cause for celebration! More photos of the Chester Zoo's latest addition after the jump.
-- Lindsay Barnett
Photos: Paul Thomas / Associated Press