library books about ecosystems
website about ecosystems
Click on this link to learn more about ecosystems.
videos about ecosystems
overhunting: the Gray Wolf
introducing species: Cane Toad
global warming: polar bears
Also, on TUMBLEBOOKS watch Polar Bear Mom and Cubs (Video)
This Polar Bear mom is trying to take care of her babies. She teaches them to find food, swim and how to protect themselves from enemies.
Publisher: National Geographic
TumbleTime: 2 minutes and 43 seconds
Check out this AMAZING WEBSITE on polar bears and climate change