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American Focus > Blog > Tech and Science > Some of These Whales May Live Twice as Long as Scientists Thought
Tech and Science

Some of These Whales May Live Twice as Long as Scientists Thought

Last updated: January 6, 2025 4:55 am
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Some of These Whales May Live Twice as Long as Scientists Thought
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Southern right whales have long been known to have impressive lifespans, with some individuals living well past 100 years. However, a recent study published in the journal Science Advances has revealed that these majestic creatures may actually live up to 150 years, almost double the previously believed lifespan of 70-80 years.

The research, conducted by a team of scientists including Greg Breed, Peter Corkeron, and others, utilized photo identification of individual female whales over several decades to estimate their potential lifespans. By developing survivorship curves based on the probability of whales disappearing from photographic records as they aged, the researchers were able to make these groundbreaking discoveries.

Interestingly, the study also compared the lifespans of Southern right whales to their closely related counterparts, North Atlantic right whales. While North Atlantic right whales were previously thought to have a maximum lifespan of around 70 years, the research found that these critically endangered species actually have a current average lifespan of only 22 years, with very few individuals living past 50. This significant difference in longevity is attributed to human-caused mortality, particularly from entanglements in fishing gear and ship strikes.

The implications of these findings extend beyond the realm of marine biology. Understanding the lifespan of wild animals like whales is crucial for developing effective conservation and management strategies. Species with long lifespans typically reproduce slowly and have longer intervals between births, making them more vulnerable to external threats like climate disruption. By accurately estimating the potential lifespan of these animals, conservation efforts can be better tailored to ensure their survival.

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The study also raises questions about the longevity of other whale species, such as blue, fin, sei, humpback, gray, and sperm whales. Like the bowhead and right whales, these species were nearly decimated by industrial whaling, which only ended in the 1960s. It is possible that these species also have longer lifespans than previously believed, but further research is needed to confirm this hypothesis.

In conclusion, the research on the lifespans of Southern right whales sheds new light on the incredible longevity of these marine giants. By continuing to study and protect these magnificent creatures, we can ensure that future generations will have the opportunity to witness their beauty and grace in the world’s oceans.

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