PBS site provides links to understanding how glacier movement can reveal the effects of global warming. Contains links to view satellite images of glaciers from space, a video clip and slide show about a science expedition to a glacier...

PBS site explores the T. rex and its enormous size. Contains links to a video broadcast segment, a section on "Growing Up T. Rex," "Name That Sound" as well as a section on "Ask the Expert."

PBS site explores mirror neurons and why humans get so worked up watching other people. Contains links to a video segment on the discovery and significance of mirror neurons, a research update involving a study using pro dancers, an...

PBS explores the new tools available to make it easier to predict a hurricane's intensity. Contains links to a quiz that will separate the "hurricane know-it-alls" from the rest of us as well as a section entitled: "How do they know that?"

PBS highlights the common wood frog and how it freezes solid every winter and then, come spring, defrosts and mates. Contains links to a video segment, cold cures as well as an "Ask the Expert" section. [4:00]