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).
The kangaroo is a marsupial that is indigenous to Australia and and the Indonesian island of New Guinea. Although kangaroos are often seen congregating in groups, kangaroos are generally fairly solitary mammals but kangaroos are also known for being sociable animals when with other kangaroos.angaroos eat plants, nuts, berries and insects that the kangaroos rummage for in the arid wilderness. Kangaroos are most well known for their ability to jump a phenomenal distance. The kangaroo is the largest of the marsupials, a group an animals that includes koalas and the common brushtail possum.