Since 1961, the wildebeest population has increased from 260,000 to 1.4 million.
If all the wildebeest of the Serengeti were placed end to end, they would form a line 1,850 miles long.
In two years in the late 1800s, 95% of the wildebeest and buffalo populations died of rinderpest.
The Serengeti-Mara ecosystem covers an area the size of the state of Vermont.
The average wildebeest weighs about 300 pounds and consumes nearly seven pounds of dry grass per day.
85% of wildebeest calves are born in a three- to four-week period.
Poachers kill 50,000 to 70,000 wildebeest annually.
16,000 dung beetles can bury three and a half pounds of dung in two hours.
The crocodile is the only living reptilian descendant of the dinosaur. It has remained virtually unchanged for 190 million years.
The adult elephant requires about 330 pounds of food and between 19 and 24 gallons of water per day.
In 1977, there were 900 black rhinos in the Serengeti region. Today, the black rhino is extinct in the Serengeti National Park while 30 live in fenced sanctuaries in the Masai Mara Game Reserve.