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Arthropod: animals that typically have hard segmented outer shells that work as a skeleton (exoskeleton). This includes spiders and insects as well as other animals......more
Characteristic: a quality that make something similar or different than other things. All birds have wings which are common a characteristic.
You might have noticed that scorpions have some of the same characteristics as a lobster or crab. Their pinchers are one of the similar features. It might not surprise you that both scorpions and lobsters are in the same group. They are both part of the Phylum Arthropoda. What might surprise you is scorpions are even more closely related to spiders. Both are part of the subgroup (Class) Arachnida. If you do some research, you will find that these animals share common characteristics, such as having eight legs. This is unlike insects that have six legs. This means that scorpions are not insects. However, insects are their favorite food.
Arizona Bark Scorpion stinger by JAdams1776 via Wikimedia Commons.
Illustration released by Pearson Scott Foresman into public domain. Modified by Ask A Biologist.
Dr. Biology. (2016, June 27). Scorpion Anatomy. ASU - Ask A Biologist. Retrieved December 15, 2018 from https://askabiologist.asu.edu/scorpion-anatomy
Dr. Biology. "Scorpion Anatomy". ASU - Ask A Biologist. 27 June, 2016. https://askabiologist.asu.edu/scorpion-anatomy
Dr. Biology. "Scorpion Anatomy". ASU - Ask A Biologist. 27 Jun 2016. ASU - Ask A Biologist, Web. 15 Dec 2018. https://askabiologist.asu.edu/scorpion-anatomy
The stinger of an Arizona Bark Scorpion is not something you want experience.