The L.A. Zoo is the only zoo in the U.S. to breed the rare pronghorn species that is native to Baja California Sur.
Zoo officials say the twins' birth is a great leap forward for conservation efforts meant to help the critically endangered species because one of the two fawns is female. So far, the only pronghorns born at the zoo have been male.
Newborn pronghorns take their first steps within 30 minutes of birth. By the time they are four-days-old, they can outrun humans. They are the second fastest land mammal and the fastest hoofed mammal, with running speeds between 40 and 60 miles an hour.
