By: Jaida Hughes, Destiny Wheat, and Llyac Ross


Subphylum: Chelicerata

Order: Scorpiones

Phylum: Arthropoda


Class: Arachnida


 Phylum, Subphylum, Order, Class


There are 105 species in the class similar to scorpions but with a whiplike tail.

Number of Species in the Class


Body Structure / locomotion / External Structure such as segments

Scorpions walk on their eight legs much like a spider. This enables them to move quickly and smoothly.

External Structure

The three major regions that form the body, from front to rear, are the prosoma, the mesosoma, and the metasoma. The mesosoma and the metasoma together form the abdomen, or opisthosoma. The prosoma has six segments, each with a pair of appendages.

Scorpions are arthropods, they have eight legs, two pedipalps, and a tail with a venom-injecting barb. Scorpions have two venom glands that produce venom used in hunting and self defense. Scorpions do not have bones instead they have an exoskeleton made of chitin, which is similar to the shell of a shrimp.


There are also quite a few scorpions that spend daylight in burrows. Scorpion burrows can be a meter deep, depending on the dryness of the location. To form a burrow, scorpions dig to a depth where moisture and temperature are suitable and comfortable. Burrows are usually only made to accommodate one scorpion.


Whip scorpions are most common from India and Japan to New Guinea.

 Most scorpions prefer deserts and semi-arid regions. Most scorpions hide under logs, rocks, boards and clutter. Some, such as the bark scorpion, rest on vertical surfaces like trees, bushes and walls.




# of  species

United States




*New Mexico








  • Whip scorpions tails serve as a sensory organ, unlike most scorpions that has a stinger and venom Whip Scorporpions do not. 
  • Their first two legs serve as sensory organs as well.

Sensory Functions


Common prey includes as well as spiders and other arachnids, including other scorpions. Less-common but regular prey includes pill bugs, snails, and small rodents. Most scorpions are sit-and-wait predators that remain motionless until a suitable victim has moved into an ambush zone. Scorpions are hunted by, centpedes, tarantulas, lizards, birds, owls, bats, and grasshoppermice. 

Even though there are no signs of extinction for them, if they were to be going out there would be an increase in bugs and insects becuase that is one less animal going after them and a dent in the lizards bats, etc. because of the lack of scorpions they wont have as many choices to eat from and scorpions may be the only source of food in that region.

Sexual reproduction is accomplished by the transfer of a spermatophore from the male to the female; scorpions possess a complex courtship and mating ritual to effect this transfer. Mating starts with the male and female locating and identifying each other using a mixture of pheromones and vibrational communication. Scorpions rely on smell and vibrations to find each other for mating purposes. When a pair find each other they may take part in a very complex dance with each other. Mating can take from few minutes to hours. Once mating has been completed they will go their separate ways again. Sometimes the male won’t leave soon enough and he will become dinner for the female. If he does get away he will likely go in search of some food. Then he will venture on to find other females he can successfully mate with. The young will grow inside of the female and be born alive from her body. These young will live on her back for the first several weeks of life. The gestation period can be from 3 to 8 months. Before the young are born the female will take part in a very unique posture.



Most scorpions have a period of courtship that can last from a few minutes to hours.

Work Cited


  •  Scorpion Information. (n.d.). Retrieved February 26, 2016, from 


  •  How scorpion locates its prey. (n.d.). Retrieved February 26, 2016, from 


  • Scorpion Reproduction. (n.d.). Retrieved March 01, 2016, from