Crabs and some fish such as flounders and rockfish are immortal!!

impur

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Came across this article on reddit of all places. Pretty interesting stuff!!

Animals That are Immortal or Long-lived Animals with "Negligible Senescence". didn't know W/O - Writer's Corner: General Non-Fiction - Epinions.com

Classic examples of species exhibiting both of these traits (mortality and immortality) are the Flounder and the Rockfish. The male Flounder reaches a fixed body size and ages normally, as most animals do, and dies soon thereafter. However, the female Flounder grows indefinitely and shows no signs of aging or loss of function with time. The Rockfish have both short-lived and long-lived members in the same genus. They range from 12 years for the calico rockfish to 205 years for the rougheye rockfish.
 

When to mix up fish meal: When was the last time you tried a different brand of food for your reef?

  • I regularly change the food that I feed to the tank.

    Votes: 38 24.2%
  • I occasionally change the food that I feed to the tank.

    Votes: 53 33.8%
  • I rarely change the food that I feed to the tank.

    Votes: 47 29.9%
  • I never change the food that I feed to the tank.

    Votes: 15 9.6%
  • Other.

    Votes: 4 2.5%

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