ScienceKiller whales of Puget Sound are acting strange, population declining fast The killer whale population in the Puget Sound in Washington state has been dropping quickly, worrying environmentalists. Only about 78 orcas now live in the sound, a level not seen since 1985, and the social pods they live in are splintering.by Rebecca Kaplan
ScienceEmperor penguins declining, but how is climate change affecting other arctic species?by James Maynard
WATCH: Runner Spends Year Using Exercise Tracker to Create Elaborate Stick Figure Art on City Streets
