The Open Door Web Site
Facts and Figures Index
FACTS AND FIGURES
The zebra herds graze on the grasslands and savannahs of eastern Africa. An adult zebra has a mass of up to 235kg and can run at a speed of 80km/h. When the herd is alarmed the zebra move quickly in all directions. Their stripes dazzle the predator and make it difficult to tell one zebra from another.
There are two kinds of rhinoceros, the white rhino and the black rhino. The rhino has a mass of around 2,3 tonnes. It is not able to see very well but it has a good sense of hearing and a good sense of smell. The rhino is a herbivore, feeding on leaves. Because it is so large it needs to eat a lot of food each day.
Black rhino (called Susan), National Park, Nairobi, Kenya
The white rhino has broad lips for eating short grass. The black rhino has a pointed, movable upper lip for taking leaves from tall grasses and shrubs. Rhinos need to drink each day, although they can go for up to 5 days without water.
Shark, Manley Aquarium, Australia
Most sharks are carnivores. They detect prey by using their sense of smell and by picking up vibrations in the water. A number of sharks will arrive and circle around the prey. Sharks have powerful jaws and many sharp, backwardly-pointed teeth. When the prey is attacked and blood flows into the sea water, the sharks get very excited. As they bite into the prey they twist and turn their bodies violently, trying to tear off pieces of meat. If one of the sharks is bitten and starts to bleed it will also be attacked by the other sharks.
The tiger shark eats many different fishes, sea turtles, birds, sealions, squid and crustaceans. These sharks will even eat the waste thrown overboard by passing ships.
Wolves feeding, Thoiry Park, France
Wolves have a mass of up to 70Kg (about the same size as a fully grown man). They live to between 8 and 16 years of age in the wild. A wolf pack normally contains around 7 wolves when hunting deer. The pack can reach up to 20 wolves if the prey is larger. The hunting area of a wolf pack is about 1,000km3¸ The wolf pack is not always successful when hunting deer. For every 120 attacks the wolves make only 6 killings.
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