Horns and antlers are extensions of an animal's skull and are generally found ... whereas horns are unbranched, two-part structures with a bony core and covered by a keratin sheath.

They may find one another by following the trail of scent each enormous animal leaves behind it on the landscape. White rhinos have two horns, the foremost more prominent than the other.

They may find one another by following the trail of scent each enormous animal leaves behind it on the landscape. Black rhinos boast two horns, the foremost more prominent than the other.