Here's why:
* Different Types of Horns: There are actually different types of horns found in the animal kingdom. Some horns, like those of rhinoceroses, are made of keratin (the same material as human hair and nails) and are not connected to the skull bone. Other horns, like those of antelopes and cattle, are made of bone covered in keratin and are attached to the skull.
* Hooves vs. Paws: Hooves are hard, protective coverings found on the feet of certain mammals, like horses and cows. They are adapted for running and walking on hard surfaces. Paws are found on other animals, like cats and dogs, and are typically padded with claws.
Examples:
* Rhinoceroses: They have horns, but they have thick, leathery pads instead of hooves.
* Giraffes: They have horns (actually ossicones, which are bony projections covered in skin), but they have hooves.
* Antelopes: They have horns and hooves.
* Cattle: They have horns and hooves.
So, the presence of horns doesn't necessarily mean an animal has hooves.