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.
Quick Answer. There are 50 to 60 million kangaroos living on the Australian continent. There are 48 kangaroo species, and the current population is the highest on record, as of 2014. The kangaroo is the most common large wild mammal on Earth because of its growing numbers. There are twice as many kangaroos in Australia as there are sheep. There are nearly three times more kangaroos than cows in Australia. The kangaroo eats grass just like cattle and sheep, so the grassland consumption of kangaroo populations is monitored closely.