•  Often rocks are found in crocodiles' stomachs.  It is believed these rocks help them digest their food.
• Crocodiles are good parents.  
• Young crocs stay with their moms for about two years.
• Mother crocs pick up their babies with their teeth and hold them in a sac in their lower jaw.
• Crocodiles in the wild usually live about 45 years.
• Nile crocodiles live on the continent of Africa (which we think is in the southern hemisphere).

From Ericka J.

•  A kangaroo can jump as long as 30 feet in 1 single leap.
• A sailfish can swim as fast as a car on the highway.
• A rhinoceros beetle can lift 30 times the size of itself.
• A booby bird can dive 50 feet above the air into the water to catch fish.