Sea robins are fish with two large, winglike fins and six crablike legs. But their extra limbs do more than just scurry about the seafloor. Research now suggests that some…

Exoskeleton (noun, “ECKS-oh-skell-eh-ton”) An exoskeleton is an armor-like covering that protects many small invertebrates. Such animals include insects, spiders and crustaceans. The prefix exo- means outside. So an exoskeleton is…

You’ve likely seen NASA images of the sun that look like this. And if you peek at it in the sky, it can appear from white to red, depending on…

You’ve probably seen a cat or dog swing their ears toward a sound. We can’t move our fairly rigid ears this dramatically. But people still possess ancient ear-moving muscles. Some…

Romulus, Remus and Khaleesi are the first dire wolves to walk the Earth in more than 10,000 years. Or so claims one biotech company and a host of recent headlines.…

Scientists are working to unlock the secrets to bringing back extinct animals. One potentially important new advance is the creation of genetically altered mice with long, golden locks of tufted…

It’s a word no one wants to hear for themselves or someone they love: cancer. It’s so scary that some people instead call it “the C-word.” There are more than…

The morpho butterfly is a flying marvel. It flits through the rainforests of Central and South America. With wings that can span 20 centimeters (8 inches), it can be bigger…

Each year, more than 2 million people worldwide undergo open-heart surgery. This involves opening the chest and briefly stopping the heart. Getting those hearts pumping again can sometimes be risky,…