World Data Ocean/growth layer groups

growth layer groups

World Data Ocean keeps growth layer groups in one place: one story so far. The section currently leads with “Reading Growth Layers in Teeth to Calibrate Age in Long-Lived Marine Mammals”. A killer whale with 52 visible growth layers in its teeth, yet radiocarbon data suggesting an age of 65 years or more, reminds us that even our most trusted age-calibration tools have limits. A Global Hub for Ocean Intelligence 4 World Data Ocean is a centralized digital platform where researchers, scientists, and ocean enthusiasts converge to… The list below is every growth layer groups story on World Data Ocean, newest first.

Reading Growth Layers in Teeth to Calibrate Age in Long-Lived Marine Mammals
Frontiers in Marine Science | New and Recent Articles

Reading Growth Layers in Teeth to Calibrate Age in Long-Lived Marine Mammals

A killer whale with 52 visible growth layers in its teeth, yet radiocarbon data suggesting an age of 65 years or more, reminds us that even our most trusted age-calibration tools have limits. This study validates annual dentine deposition in early life for sperm whales and one killer whale, but reveals that fidelity can erode in older individuals. Integrating bomb radiocarbon with stable isotopes is not optional; it is essential.