what is the color of horseshoe crab blood
Horseshoe crab Horseshoe crabs use hemocyanin to carry oxygen through their blood. Because of the copper present in hemocyanin, their blood is blue. Their blood contains amebocytes, which play a similar role to the white blood cells of vertebrates in defending the organism against pathogens. Amebocytes from the blood of L. polyphemus are used to make Limulus amebocyte lysate, which is used for the detection of bacterial endotoxins in medical applications.[19] This means there is a high demand for harvesting the blood, which involves collecting and bleeding the animals, and then releasing them back into the sea. Most of the animals survive the process; mortality is correlated with both the amount of blood extracted from an individual animal, and the stress experienced during handling and transportation.[20] Estimates of mortality rates following blood harvesting vary from 3-15%[21] to 10-30%.[22] Approximately 500,000 crabs are harvested annually.[23]
Cadejo The cadejo (Spanish pronunciation: [kaˈðexo]) is a supernatural character from Central American and southern Mexican folklore. There is a good white cadejo and an evil black cadejo. Both are spirits that appear at night to travelers: the white to protect them from harm during their journey, the black (sometimes an incarnation of the devil) to kill them. The colors of the cadejo are sometimes exchanged according to local tradition. In some places, the black cadejo is seen as the good one and the white cadejo the evil one. They usually appear in the form of a large (up to the size of a cow), shaggy dog with burning red eyes and a goat's hooves, although in some areas they have more bull-like characteristics. According to the stories, many have tried to kill the black cadejo but have failed and perished. It is also said that if a cadejo is killed, it will smell terrible for several days, and then its body will disappear. Some Salvadoran folklore also tells of a cadejo that guards drunks against anyone who tries to rob or hurt them. When the cadejo is near, it is said to bring about a strong goat-like smell. Most people say never to turn your back to the creature because otherwise you will go crazy. Speaking to the cadejo will also induce insanity.