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.
All of the members of the Macropodidae family of marsupials (which is everything that is vaguely kangaroo shaped) are only found in Australia and New Guinea. Kangaroos first evolved sometime between 30 to 12 million years ago. This is after Australia was last connected to Antarctica, so Kangaroos (and most modern marsupials) have been isolated from the rest of the world since then.