Wetlands are found from the tropics to the tundra, on every continent except Antarctica. Wetlands can have saltwater, freshwater or brackish water (more salty than freshwater, but less salty than saltwater).
Thanks to several factors -- the food cornucopia that is suburbia, climate change expanding species' ranges, and less hunting, to name a few -- wildlife is going increasingly urban worldwide.
California has lost half its big trees since the 1930s, according to a study to be published Tuesday in the Proceedings of the National Academy of Sciences -- and climate change seems to be a major factor.
We’ve been adding fluoride in our water to help dental health, but how much is too much?
You know what size shoe you wear. But do you have any idea how big the footprint is you leave behind?
Sep 8, 2012; 5:00 AM ET With shorter days and colder nights in the fall and winter, some people develop seasonal affective disorder. When shopping for lightbulbs to treat the 'winter blues,'consider energy-efficient bulbs.