which animal has sharp quills on its body
Porcupine Porcupines are rodents with a coat of sharp spines, or quills, that protect against predators. The term covers two families of animals, the Old World porcupines of family Hystricidae, and the New World porcupines of family Erethizontidae. Both families belong to the infraorder Hystricognathi within the profoundly diverse order Rodentia and display superficially similar coats of quills: despite this, the two groups are distinct from each other and are not closely related to each other within the Hystricognathi.
Narwhal The most conspicuous characteristic of the male narwhal is a single long tusk, a canine tooth[13][14] that projects from the left side of the upper jaw, through the lip, and forms a left-handed helix spiral. A tusk grows throughout life, reaching a length of about 1.5 to 3.1 m (4.9 to 10.2 ft). It is hollow and weighs around 10 kg (22 lb). About one in 500 males has two tusks, occurring when the right canine also grows out through the lip. Only about 15 percent of females grow a tusk[15] which typically is smaller than a male tusk, with a less noticeable spiral.[16][17][18] Collected in 1684, there is only one known case of a female growing a second tusk (image).[19]