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Fig. 4. | BMC Biology

Fig. 4.

From: Horizons in the evolution of aging

Fig. 4.

Longevous organisms. Many organisms age very slowly, if at all. Top left: the freshwater polyp Hydra (top left) is potentially immortal. Bottom left: some trees like this bristlecone pine (Pinus longaeva) live for thousands of years. Top right: in the naked mole-rat (Heterocephalus glaber) mortality does not increase with age. Bottom right: the bowhead whale (Balaena mysticetus) is the longest-lived mammal, with an estimated maximum lifespan of 211 years. Images: Hydra – © Frank Fox and www.mikro-foto.de Wikimedia Commons/CC-BY-SA-3.0; bristlecone pine - J Brew/Wikimedia Commons/CC-SA-1.0; naked mole-rat ©Roman Klementschitz/Wikimedia Commons/CC-BY-SA-3.0/GFDL; bowhead whale - Olga Shpak/Wikimedia Commons/CC-BY-SA-3.0

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