There's a Koala baby boom on one Australian island and scientists are hoping to slow that down. Scientists are hoping a new contraceptive dart will slow down the population explosion of koalas on Kangaroo Island.

The island's eucalyptus trees are dwindling and the island's 28,000 koalas are eating themselves out of a habitat. The animals eat nearly a pound of leaves every day. So far, the contraceptive darts have proved 100 percent successful.

Zoo officials in Hangzhou Safari Park in Hangzhou City, China, took pity on a kangaroo who lost its leg during a car accident, and gave the animal an artificial limb.

Officials at the zoo said the kangaroo was the first animal to receive an artificial limb.

According to the state's Xinhua News Agency, the kangaroo lost its leg after it was involved in a car accident. The severity of the damage on its left limb forced the doctor to amputate it.

A kangaroo is on the loose in Ireland after running away from a circus near Kinsale. Circus workers searched for the animal for four-hours after the animal escaped on Sunday. Local farmer John Walsh tells Reuters, "This kangaroo broke loose just before the show while they were bringing him from the cages to the arena. He decided to take a walk."

So far there has been one unconfirmed sighting of the 2-year-old male, named Sydney. Locals have taken to calling him "Hoppy." He is two and a half to three feet tall and has a dark coat.

Walsh continues, "He would be happy out there and he'll have plenty of grass, plenty of water and plenty of sunshine."

The four year old Kangaroo who had been attacked by a wolf last year has undergone plastic surgery by Los Angeles-based surgeon, Theodore Corwin, better known for performing face-lifts, tummy tucks, breast enhancements and other cosmetic procedures on humans.

The surgeon spent two hours operating the marsupial, named Feznik, who lives on a Californian farm for Hollywood animals used at corporate events, in movies and advertisements.