Deep within the vast, blue canvas of the Pacific Ocean, an individual life history spanning decades was recently brought into sharp focus by a set of remarkable photographs.
The story begins in 1985 off the coast of Nayarit, Mexico, where a humpback whale was initially photographed by the Research Group of Marine Mammals. Researchers identified the whale as CRC-10724, utilizing the unique patterns of scars, pigmentation, and the shape of its tail fluke, which serves as an individual "fingerprint" for these magnificent creatures. Astonishingly, thirty-five years later, in 2020, the same whale was photographed again off the coast of Los Cabos, Mexico. The comparison of the two images, separated by over three decades, confirmed the whale’s identity, allowing scientists to track its longevity and migration patterns. This incredible resighting is one of many within a large collection managed by groups like the Cascadia Research Collective, demonstrating the long life span of humpback whales and the effectiveness of non-invasive photo-identification as a core research technique. It serves as a powerful testament to the resilience of these animals and the crucial work being done to monitor their population recovery.