During an interview on a talk show, Killer Willard the boxing kangaroo, demonstrates his abilities. Irene, the kangaroo's owner and trainer, claims Killer Willard's boxing is a "comedy act." During the interview, Killer Willard kicks Irene and punches her in the face. The kangaroo continues to punch, kick and bite Irene's husband while Irene and the show's host make every effort to keep out of harm's way.YouTube: Boxing Kangaroo (Time: 1:29)

1. Male kangaroos "box" in play, to assert their dominance or in competition over femalesNational Geographic: Eastern Gray Kangaroo
2. Kangaroos can not walk backwardsSan Diego Zoo: Kangaroo
3. Kangaroos are capable of disemboweling an opponent with their hind legs and long, sharp toenailsBBC h2g2: Stories to Scare Tourists (July 31, 2000)
4. As a marsupial mammal, female kangaroos carry their young in their pouchSan Diego Zoo: Kangaroo
5. Kangaroos are macropods (big foot)San Diego Zoo: Kangaroo
6. There are more than 50 species of kangaroosSan Diego Zoo: Kangaroo
7. Buck, boomer or jack: a male kangarooSan Diego Zoo: Kangaroo
8. Doe, flyer, roo or jill: a female kangarooSan Diego Zoo: Kangaroo
9. Joey: a baby kangarooKid's Planet: Kangaroo
10. Mob: a group of kangaroosKid's Planet: Kangaroo
11. The red kangaroo, the largest species of kangaroo, can travel up to 30 mph and weigh up to 200 lbsSan Diego Zoo: Kangaroo