If pills are taken every day at the same time, and each pack is started on time, oral contraceptives are 99% effective in preventing pregnancy. On average, oral contraceptives are 93-97% effective because women often miss pills or do not start a new pack on time.
Kangaroos are large marsupials that are found only in Australia. They are identified by their muscular tails, strong back legs, large feet, short fur and long, pointed ears.angaroos are the only large animals that hop as a primary means of locomotion. Their springy hind legs and feet are much stronger and larger than their arms (or forelimbs). According to the San Diego Zoo, kangaroos can cover 15 feet (7 m) in a single hop and can hop as fast as 30 mph (48 kph).
Interesting Facts About Kangaroo. 1  The amazing kangaroos are only found in Australia. 2  Kangaroos are the national symbol of Australia. 3  The red kangaroo is the largest species of Kangaroo and the largest terrestrial mammal of Australia. 4  Kangaroos are the only large mammals that use hop as the main method of locomotion.