World of Dinosaurs/Horns vs Antlers

Horns are bone coated in a protein. They stay on the animal's skull and continue to grow throughout the animal's life.

Examples include:

• Bison
• Cows
• Giraffe
• Utahceratops
• Pachycephalosaurus

Antlers are bones, and they can come off the animal's skull in many cases. In many cases they regrow yearly.

Examples include:

• Moose
• Deer
• Elk