Great animal webcams (remember many sites are open only 8-16 localtime)

Shark aquarium webcams

Shark Cam At The Minnesota Zoo

London Aquarium

Webcam Live Squali Parco Le Navi

Manatee Cam

Coral reef cams (one high quality cam, also sharks)

Lions

lioncam.una.edu

Alligators

Gatorland's gator cam

Polar bears

San Diego zoo polar bear webcam

Other animals webcams

The Critter WebCam Links

If you know other great webcams, please post those addresses to comments section, so that we can all enjoy those.