Science This is one of the world's tallest trees; and this is the arborist who climbed it David Pescovitz

animation Watch this beautiful visualization of the sounds of the Amazon rainforest David Pescovitz

adorable animals "Babe, wake up, new panda rat just dropped!": Meet the Northern Luzon Cloud Rat Jennifer Sandlin

bug Peppermint-stick insect: the mint-spraying rainforest bug Popkin

cute Velvet worms are ancient, adorable creatures that have survived 500 million years Popkin

australia Psst…. don't tell this adorable lil' tree kangaroo that he's got avocado all over his snout Jennifer Sandlin

carbon emissions New research shows plants absorb 31% more carbon dioxide than previously thought Ellsworth Toohey

adorable animals Behold the biscuit-making skills of Wilbur the binturong Jennifer Sandlin

Drug-taking gorillas may hold secrets of future medicines Allan Rose Hill

animals Rainforest mammal spotted 3,000 miles away in Washington state Allan Rose Hill

amazing animals Watch Sandy the binturong show off his amazing prehensile tail! Jennifer Sandlin

animals Kinkatopia rescues abandoned kinkajous and discourages you from getting one of the racoon-like animals as a pet Jennifer Sandlin

rescues Border patrol find 7 spider monkeys crammed into a backpack (video) Carla Sinclair

Science Watch a leaf produce oxygen Elías Villoro

climate change Amazon carbon emissions up 40% but somehow still on track for "net zero" by 2040 Thom Dunn

Science Watch these miniature Brazilian frogs in all their awkward glory Jennifer Sandlin

Survival tips Lt. Smith and the booby bird — a true tale of survival Mark Frauenfelder

evolution Astonishing videos of a microscopic tardigrade going for a walk David Pescovitz

picks Amazon Alexa turned me into a prepper Jason Weisberger

Environment 2015 was deadliest year on record for environmental activists Andrea James