Description | Description:Musk-ox live in Canada, Greenland, and Alaska. They have long hair and a shoulder hump. Their outer hair is coarse, while their under hair is fine. They have curved horns which are used for aggressive and violent fighting. | Description:Porcupines are the largest of all rodents,living in jungles of Africa, Europe, and Asia. They are coated with long poisonous spikes for defense. These spikes separate from the porcupine, painfully stick into the victim, and are difficult to remove. Porcupines are mostly grey and brown, but some are white in color. |