This is one of the best websites to learn about all kinds of animals. There are pictures, information, and videos.  National Geographic's section for Kids is a really fun website for children to learn about animals and many other things in our world. 

These videos that tell how we sort animals into groups. 

Vertebrates are animals with  bones inside their bodies.

Nat Geo WILD  is a fun YouTube channel.

Narwhals

These whales have a long straight tooth that looks like a sword.  

Biggest Eagles in the World

White-Tailed Eagles  in Norway Fight Over Fish 

 More Short Videos of Amazing Animals

Meet the World's Smallest Owl

Nature on PBS

Octonauts - The Dwarf Lantern Shark | by PBS 

The Octonauts are an educational cartoon series fun for young children.

The Kratts Brothers is another educational cartoon series made by PBS.

The Kratts Brothers like to have adventures with animals, and now there are cartoons of them. Wild Kratts - Discover Pandas and More Bears! 10 minutes.

Crocodile Mom Scoops Up Babies in Mouth (fake egg has spy camera that takes video from inside the mama croc's mouth!) 

A Sea Anemones looks like a plant, but it is really an animal. Some of them can let go of the bottom and swim to get away from danger!

Animals from Madagascar

Google doc about Animals from Madagascar

Lemurs

Instead of walking, these primates hop.

Tomato Frog

The tomato frog ambushes its prey by eating it very quickly.

Frill-Necked Lizard Escapes Python 

This lizard runs fast while standing up!

Metamorphosis: Caterpillar to Butterfly