6 Organisms that Never Seem to Age
Lobsters Don’t Actually Get Older and Die, they just get Bigger
Lobsters are considered biologically immortal. It is seen that lobsters don’t actually die of old age, but rather grows in size. Lobsters age in a different way, the process makes them bigger and stronger and occurs in a way different than other animals. The oldest living lobster is 140 years old. They also have the ability to regenerate lost parts, means that if some part of a lobster’s body is lost, it grows back.
The biological immortality does not mean that they cannot die, but it is difficult for a lobster to die without external forces.[Ref]
The Sea Anemone
The sea anemone is a sea animal, that just like a lobster, never seem to get older, just bigger. It doesn’t even seem like an animal at all. In-spite of never dying from old age, the average sea anemone dies within 80 years due to environmental factors and human activities.[Ref]
The immortal jellyfish might be one of the only truly immortal animal. This is because the adult jellyfish can decide to reverse the ageing by turning itself to polyp, or a baby jellyfish. The adult jellyfish can either reach maturity or re-absorb its body and become little tiny jellyfish babies.[Ref]
Turtles never die of old age
Tortoise, or an adult turtle, is never fully mature, almost all old tortoise have been found to be in teen phase. They exibit a phenomenon known as negligible senescence. Senescence is death by old age, injury or disease. Tortoise has been well known to live 100s of years, one giant Aldabra Tortoise died in 2006 was born in 1750, still could have lived longer as he was not fully mature, the reason of death was liver failure, due to infection from crack in his shell.
Tortoise are studied extensively to learn the secrets of negligible senescence, as they are much similar to humans than lobsters or jellyfishes.[Ref]
Viruses are technically never alive
Viruses are complex molecules, they don’t have a brain, DNA, or anything similar to other living creatures. They are just purely long chains of complex protiens. They reproduce through a host cell. Viruses do not grow and are never truely alive so they never ever die.[Ref]
Hydra are nearly microscopic, but deadly creatures. They release neurotoxins to paralyze their pray and consume it. A Hydra never ever ages, and made of stem cells they constantly replenish their old body parts. [Ref]