* Mastodons: Mastodons were another type of elephant that lived during the same time period as mammoths. They were smaller than mammoths, with shorter trunks and tusks. Mastodons were found in North America and South America.
* Saber-toothed cats: Saber-toothed cats were a group of big cats that lived from about 42 million to 10,000 years ago. They were characterized by their long, saber-like canine teeth. Saber-toothed cats were found in North America, South America, Europe, Asia, and Africa.
* Dire wolves: Dire wolves were a type of wolf that lived from about 1.2 million to 11,000 years ago. They were larger than modern wolves, with stronger jaws and teeth. Dire wolves were found in North America and South America.
* Cave bears: Cave bears were a type of bear that lived from about 500,000 to 25,000 years ago. They were larger than modern bears, with thick fur and long, curved claws. Cave bears were found in Europe and Asia.
* Giant ground sloths: Giant ground sloths were a group of large, herbivorous mammals that lived from about 10 million to 11,000 years ago. They were the largest land mammals of their time, some reaching up to 20 feet long. Giant ground sloths were found in North America and South America.
* Glyptodonts: Glyptodonts were a group of giant, armored mammals that lived from about 10 million to 10,000 years ago. They were related to armadillos, but they were much larger. Glyptodonts were found in North America and South America.