An ostrich egg equals 24 chicken eggs, and can feed 12 people breakfast. They weigh about 3 pounds (1.4kg).
The Ostrich lays the biggest eggs in the world. Their eggs can measure up to 6 inches in diameter, and weigh more than five pounds.
The cheetah is the fastest of all land animals, being able to reach speeds of up to 68 mph (110km/h).
The heart of a giraffe weighs more than 10 kilograms (22lbs) and beats twice as fast as the human heart.