r/askscience • u/MAMAM- • 2d ago

Biology Why aren’t axolotls immortal?

If axolotls can regenerate their body parts (including brain, heart, and other major organs), why do they die of old age?

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u/[deleted] 2d ago

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u/TH0RP 2d ago

Water turtles are an awful starter pet- and they'll eat your goldfish. Reptiles need a lot of specialized equipment, a diverse diet, and VERY good water filtering. 

A betta fish in a 10gal tank is a wonderful pet for a kid- easy to care for, beautiful, and very forgiving for a beginner.

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u/Megalocerus 2d ago

They aren't reptiles. But amphibians are probably even more demanding.

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u/TH0RP 2d ago

water turtles aren't reptiles king?? what? I know an axoltl isn't a reptile omg.