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).
Matschie's tree kangaroos can leap 60 feet (18 meters) to the ground from trees without getting hurt. Size relative to a 6-ft (2-m) man: Tree kangaroos are found only in the rain forests of Australia, West Papua, and Papua New Guinea.Six of ten species are found in Papua New Guinea, in some of the last undisturbed rain forest habitat in the world.esearchers also believe that Matschie's tree kangaroos are polygamous and that males interact with several females. Males, however, appear not to establish harems, and females remain independent. The only strong social bond these animals form is between mother and offspring.