Do Crabs Live Forever?

The life expectancy of a crab varies by species. A hermit crab lives 30 to 70 years compared to a blue crab’s one to eight years. The horseshoe crab can live up to 20 years and the Dungeness crab up to 10.

Red king crabs can live for up to 30 years or longer. The life expectancy of crabs varies depending on habitat. When given the correct care, crabs maintained as pets can live longer than crabs found in the wild. Humans eat a lot of crabs; they make up 20% of all marine crustaceans that are collected or farmed globally.

Misha Khatri
Misha Khatri is an emeritus professor in the University of Notre Dame's Department of Chemistry and Biochemistry. He graduated from Northern Illinois University with a BSc in Chemistry and Mathematics and a PhD in Physical Analytical Chemistry from the University of Utah.


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