• Entry
  • Reader's guide
  • Entries A-Z
  • Subject index

At the beginning of the 20th century, more than 2 million chimpanzees flourished in the forests of 25 African countries. Today, only 4 nations have significant populations. Population estimates for 1999 show that common chimpanzee numbers have dwindled to between 150,000 ...

    • Loading...
    locked icon

    Sign in to access this content

    Get a 30 day FREE TRIAL

    • Watch videos from a variety of sources bringing classroom topics to life
    • Read modern, diverse business cases
    • Explore hundreds of books and reference titles