A herd of African elephants instinctively formed an "alert circle" to protect the younger elephants at the San Diego Zoo Safari Park as a 5.2-magnitude earthquake shook Southern California on Monday.

Hummingbirds are often highly aggressive and territorial, but in the tough terrains of the Andes Mountains, BGSU researchers found a species of hummingbird is living cohesively with its peers.

very old now - and they’re smaller than the fold mountains that are still growing - like in South America’s Andes, or the world’s tallest mountain, Everest, in the Himalayas in Asia.