The great flying dragons of the sky, the pterosaurs, fascinate kids of all ages. With unique body adaptations such as an elongated fourth finger connected to wing membranes, this airborne hunter/scavenger was totally different from birds and other reptiles.

In recent decades, soft, squishy tissues have been discovered inside fossilized dinosaur bones. They seem so fresh that it appears as though the bodies were buried only a few thousand years ago.

Massive schools of cod fish once dominated regions of the North Atlantic Ocean.