10d ago
Estimating age and annual tooth growth rates in narwhals (Monodon monoceros) using computed tomography
Podolskiy · E. A. · Shimbo · G. · Park · S.-M.
Abstract
The spiraling tooth of the narwhal (Monodon monoceros) has long intrigued scientists, but the growth rates of its "tusk" are poorly constrained due to the difficulty to age narwhal. To learn more about the population dynamics and life history of this exploited species, previous studies have used sectioned teeth to age narwhals and calibrate other ageing methods based on aspartic acid racemization, radiocarbon or trace element analysis. However, few such studies have been conducted due to the met
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