Sharing 98% of our DNA, the chimpanzee is a great ape that lives in the dense tropical forests of Africa. Apes are different from monkeys in that they lack the tails that monkeys have, walk upright at times, are bigger and have a larger, more developed brain. Chimpanzees weigh 70 – 130 lbs. when full grown, but have far greater strength than humans do. These apes eat nuts, fruit, seeds, insects and sometimes the occasional monkey. There was once upwards of two million chimpanzees on earth. Now their population is down to between 100,000 – 200,000 individuals. Like other African animals, habitat loss and hunting have contributed to their decline.