Plants:
- Eastern White Pine: These towering trees once formed vast forests across the eastern United States and Canada.
- American Chestnut: This tree was once one of the most common trees in the eastern United States, but it was wiped out by a fungal disease in the early 20th century.
- American Elm: Another common tree in eastern North America, the American Elm was also devastated by a fungal disease in the 20th century.
- Giant Sequoia: These massive trees are native to California and can live for over 2,000 years.
- Redwood: Another long-lived tree, Redwoods are native to California and can grow over 300 feet tall.
Animals:
- Mammoth: These massive, shaggy-haired creatures were once widespread across North America. Mammoths were herbivores and fed on grasses and leaves.
- Mastodon: Another large herbivore, Mastodons were similar to mammoths but had shorter trunks and smaller ears.
- Ground Sloth: These giant sloths were the largest land mammals of their time. Ground Sloths were herbivores and fed on leaves and grasses.
- Saber-Toothed Cat: These fearsome predators had long, saber-like teeth that they used to kill their prey. Saber-Toothed Cats were ambush predators and would often lie in wait for their prey before pouncing.
- Short-Faced Bear: This massive bear was the largest carnivore of its time. Short-Faced Bears were omnivores and fed on a variety of plants and animals.