Kangaroo

 With their powerful hind legs, kangaroos can jump 9 m (30 ft) in one hop and move 64 kilometers per hour (40 mph) when in a hurry. They need their tails to help them balance as this form of moving works better at fast speeds than slow speeds. But they can't walk backwards! Kangaroos need little water and can survive without it for months. They can also dig their own water wells. Like other marsupials, female kangaroos have a pouch in which they carry and nurse their young.