From the top left going clockwise: Albert Einstein, Summer 1939 Nassau Point, Long Island, NY Mark Twain in the garden, circa 1900 British troops cheerfully board their train for the first stage of their trip to the western front – England, September 20, 1939 W.H. Murphy and his associate demonstrating their bulletproof vest on October 13, 1923 The rest can be found at: twistedsifter.com
Posted in Photography
Octopi are well-known for the many different tactics they've developed for protecting themselves. One interesting species of octopi that well-exemplifies its ability of self defense is the Indonesian mimic octopus. Apart from typical camouflage, this octopus has learned to mimic other deadly creatures of the sea. It not only changes its color and shape, but it also changes its behavior to best emulate a predator.
Posted in Octopus