Lifespan, longevity, and ageing
Maximum longevity: 5.5 years (captivity) Observations: Outbred zebrafish have a mean lifespan of 3.5 years and can live up to 5.5 years. They exhibit a gradual ageing process. A spinal curvature was reported to be a common age-related phenotype (Gerhard et al. 2002). The zebrafish heart appears to have a robust capacity for regeneration based on the proliferation of cardiomyocytes which can avoid scar formation and allow cardiac regeneration (Poss et al. 2002).
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