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.
A kangaroo is an animal found only in Australia, although it has a smaller relative, called a wallaby, which lives on the Australian island of Tasmania and also in New Guinea.Kangaroos eat grass and plants. They have short front legs, but very long, and very strong back legs and a tail. kangaroo is an animal found only in Australia, although it has a smaller relative, called a wallaby, which lives on the Australian island of Tasmania and also in New Guinea.
Sources vary concerning the number of kangaroo species altogether in Australia and the tree kangaroos in both Australia and New Guinea, but the total is around 70. All but the â¦ tree-kangaroos are native to Australia alone. There are many varieties of kangaroo which come under the heading of macropod. The Western Grey Kangaroo (Macropus fuliginosus) - This species is found in the southern part of west Australia, near the coast of South Australia and the Darling River basin. 2  The Antilopine Kangaroo (Macropus antilopinus) - This species is found in the far north of Australia.