Beaver
obviously have to start with my BEST FRIEND, the humble beaver. this little critter is a keystone species, which means that its mere existence is a backbone of the ecological community. the presence of keystone species, like beavers, create the conditions for other species to thrive. beavers create dams (CAN YOU BELIEVE HOW SMART THEY ARE) which create streams and ponds, making an environment for fish, waterfowl, plants, and even apex predators.
i am obsessed with these guys. here are some fun facts about beavers that are true:
- beavers are the largest species of rodent in north america!
- beavers have valves in their nostrils and ears that shut when they are underwater. they can hold their breath underwater for up to 15 minutes!!
- the largest beaver dam in the world is over half a mile long. you can see it from space!
- beavers' teeth grow their whole lives! the beavers grind them down by gnawing down their trees and eating sticks.
Elephant
Elephants are the largest land mammals and have highly advanced memories. Their trunks contain over 40,000 muscles.
Penguin
Penguins are flightless birds adapted for life in the water. They can swim up to 15 mph using their wings like flippers.