Farts contain a literally explosive amount of methane, especially when these very flatulent animals emit them.
Kangaroo farts are almost as potent as a cow's, at least when it comes to emission of methane, a known greenhouse gas.
Despite some optimistic claims, the future for some polar bear populations continues to look grim.
Two photographers who took shocking images of emaciated polar bears talk about their experiences and what the images might mean.
While there have always been good and bad years for polar bears, scientists expect that there will be more bad years as the Arctic warms.
See the several butterfly species that are predicted to go extinct in our lifetimes.
About a third of bumblebee species are dying off, some up to 90 percent of the population. Continue reading →
Polar bears are seen eating dolphins for the first time ever, a sign that their diet is expanding. Continue reading →
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