Finches add cigarette butts to their nests to ward off pests

How do you transplant a giant sequoia? Very carefully

Germany's gorgeous Black Forest named UNESCO Biosphere Reserve

Costa Rica's Savegre River joins network of biosphere reserves

Damn this (total solar eclipse) traffic jam

Why is sunscreen a threat to coral reefs?

A glowing invasion of 'fire bodies' is underway in the Pacific

NASA releases otherworldly photo of phytoplankton bloom

This canoe documentary is almost too beautiful to watch

Cuttlefish are adorable when they try to imitate hermit crabs

Rare 'fluid' sunset reveals unique clouds

This deep sea lizard fish will haunt your dreams