From Santa’s reindeer and the Hanukkah armadillo to some very festive sea worms, our changing world is changing life for creatures great and small.

There are four antiviral medications approved by the FDA to treat influenza.

A humpback whale struggling in shallow waters off Germany's northern Baltic Sea coast has become stranded for a third time, experts said on Sunday, just hours after the animal had freed itself from a sandbank.After escaping a second sandbank late Saturday near Wismar, it was stranded once again on Sunday.