Humans are also anthropoids.
Despite their adaptive capabilities, most primate species are threatened or endangered due to habitat destruction. Five baby gorillas have been born at the National Zoo since 1990, the most recent in November 1999. All species of New World monkeys, which live in Central and South America, have widely spaced nostrils that open outward. The Old World monkeys, which live in Africa and Asia, have closely spaced nostrils that open downward. Smaller New World monkeys, such as titis, tamarins, and marmosets, leap lightly from branch to branch without the aid of a prehensile tail.