Mastodons are enormous, prehistoric elephantine creatures known for their towering size and long, curved tusks. Standing over 10 feet tall at the shoulder, they possess thick fur, especially in colder climates. These ancient relatives of elephants have tusks ranging from 12 to 15 feet in length, giving them significant reach. Mastodons are more vicious and territorial than their modern-day cousins, typically found in isolated forests, jungles, or tropical islands.