The boxer crabs and sea anemones have an awesome mutualistic relationship. Although the anemones are not required for their survival, the crabs use them for personal defense and in return the anemones get a free ride that increases their chances of snatching tasty morsels of floating food.
Some crabs have been known to live without anemone friends and others use sponges or coral instead. Still, the image of a brave little crab waving two stinging sea anemones about is supremely cute and literally quite cheering.
On Wednesday, NASA’s Cassini spacecraft will do its deepest-ever dive through an active plume on Saturn’s moon Enceladus. Scientists believe that an ocean beneath Enceladus’s crust might have the ingredients needed to support life.
Amphioctopus marginatus, also known as the coconut octopus and veined octopus, is a medium-sized cephalopod belonging to the genus Amphioctopus. It is found in tropical waters of the western Pacific Ocean. It commonly preys upon shrimp, crabs, and clams, and displays unusual behavior including bipedal walking and tool use (gathering coconut shells and seashells and using these for shelter).
The main body of the octopus is typically 8 centimeters (3 in) long and including the arms, approximately 15 centimeters (6 in) long. The octopus displays a typical color pattern with dark ramified lines similar to veins, usually with a yellow siphon. The arms are usually dark in color, with contrasting white suckers. In many color displays, a lighter trapezoidal area can be seen immediately below the eye….(read more)