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.
The Western Grey Kangaroo (Macropus fuliginosus) â This species is found in the southern part of west Australia, near the coast of South Australia and the Darling River basin. The Antilopine Kangaroo (Macropus antilopinus) â This species is found in the far north of Australia. They inhabit grassy plains and woodlands. Other species of kangaroos are smaller, and they include: 1  Wallabies, including different species of rock-wallaby, brush wallaby and swamp wallaby. 2  Quokkas, once thought to be a type of wallaby, but now regarded as another separate group. 3  Musky-rat kangaroo (the smallest of all kangaroos)