Sometimes all it takes to make your day is a small gesture of kindness -- a smile, a hug, a little present -- from a sloth.
Big drops in car use, big increases in public transit. What's not to love?
Even when you're not getting all mushy-gushy about green space and its value, trees aren't luxuries. They're investments.
If you love biking so much that the idea of getting off your bike to do work makes your stomach curl just a little bit, here is your solution.
Packaging, be gone. We have had enough of you. But more importantly, so has an intrepid grad student.
Don't endure the torture of buying a pair of jeans and keeping them forever! Just lease them!
This penguin seems to have momentarily forgotten that he is a seabird. Hey penguin, what are you, CHICKEN?
Hyrax communities also tend to settle in at particular spots. So these pee records can go back millennia -- scientists found one spot where hyraxes have been peeing for 55,000 years.
It was seven miles long, five miles wide, and it contained an estimated 100,000 dolphins.