It's that experience we all have when we just know we're being watched. You get that tingling feeling and look up — sure enough, a pair of eyes is trained on you.
Every June, the Elkmont Ghost Town of Great Smoky Mountains National Park lights up with the world's largest gathering of Photinus carolinus, a species of firefly that is famous for its synchronous flashing behavior.
Lake Koyashskoe, a salty, crimson-hued lake in Crimea that is filled with halobacteria.
Tree tunnels: When paths and roads are carved into the ground, nearby trees bend outward into the new patch of light to receive more energy for photosynthesis.
Sunrise tidal pool 10 tips for great tide pool photography The right equipment and technique can elevate the quality of the photos you make at these magical spots.