The oceans of the Earth are very much stocked with the many inhabitants,  however, a few of such critters are very strange just like the sea spiders, that appear like something that would skulk in the crawlspace present under the house of the Slender Man. With the help of the spindly limbs, these sea spiders that are not the spiders, in reality, move across the floor of the ocean with the strange, slow, deliberate steps. They devour by piercing the stationary animals like the sponges and anemones along with the help of long proboscises and suck on the pieces of tissue that are softened by the digestive juices.

At present, the new research that is published in the Current Biology journal added onto weirdness which presented that these sea spiders move oxygen and blood around their bodies by pumping through their guest and not by their hearts.

These spiders have a very unusual gut, the researchers added. “Unlike the humans, the gut of these spiders that are centrally located are very much confined to a single cavity of body, the guts of these spiders get branched out many numbers of times and the sections of the tube of the gut go down to the end of every limb,” stated H. Arthur Woods from the University of Montana, Missoula. “In effect, the guts of the sea spiders are ubiquitous and “space-filling” in their physical frameworks in a similar way like our circulatory systems are ubiquitous and space-filling.”

The, how do these spiders use that branching system for moving these fluids?  The reply is gut peristalsis. The human gut also utilises peristalsis –the waves of relaxation of muscles and construction for mixing the contents of the hut and move them all together.