Organism Physiology Paper

Evolution By Natural Selction
Matthew Ashenbrener
Dr. Pamela Buckman

The Physiology of a Scorpion

Scorpions are one of the most feared creatures on the planet. The mere sight of one can strike terror in the hearts of most people. Scorpions are predatory arthropod animal that belong in the class arachnida. Scorpions mostly feed upon smaller insect but few eat mice and larger prey. Scorpions are found everywhere on the planet except Antartica. According to “Scorpion Evolution” (2009), It is believed that the Scorpion is more than 430 million years old. This is based on the findings of preserved fossils. The fact that these living creatures are often going to stay under rock has helped to fully preserve them.
Scorpions of today are said to have evolved from the Sea Scorpion. According to “Scorpion Evolution” (2009), fossils showed that water scorpions were as big if not bigger than your average human, were also water breathers as well. The size that they were was to give them “a fighting advantage” in the water. As seen on the diagram below, the spiracles used to be gills. There is no conclusive evidence as to why this mysterious creature crawled out of the ocean to hunt and thrive on land, but it is believed that all scorpions came from the sea scorpion. The largest fossil found of the scorpion is 3 feet long.
After a few million years of evolution, we see the scorpion getting smaller, not because of food being scarce, but because it made the scorpion a more efficient hunter. Becoming smaller and the development of the median eyes it allowed this magnificent hunter more stealth. The median eye actually allows the scorpion to see what is overhead. This allowed the hunter to hunt just incase it was being hunted itself.
The stinger and the claws of the scorpion are two of that of two sides of a coin. When said such a scorpion that is of a bigger build, such as the emperor scorpion, uses its claws more so than...