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Field Notes: Rings of Time

Field Notes: Rings of Time

Update: 2025-11-11
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Many people are aware that trees can be dated by counting the layers of tree rings in a cross section. But, less folks know that fish, snails, mussels, and the teeth of many local mammal species build seasonal growth rings that are used to age individuals.
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Field Notes: Rings of Time

Field Notes: Rings of Time

Gretchen Gerrish