⚙️ how
How do marine biologists estimate the age of a whale or shark?
Quick Answer
They use growth layers in tissues such as earplugs, vertebrae, or fin spines, depending on the species.
The Full Story
Scientists estimate age by examining structures that grow in layers over time, similar to tree rings. In some whales, earplugs accumulate layered material that can be counted after death. In many sharks and rays, growth bands in vertebrae or fin spines are used to estimate age and growth rate. These methods help researchers understand lifespan, reproduction, and conservation needs.
Key Facts
1.Age can be estimated from growth layers in tissues
2.Different marine species use different structures
3.These methods support conservation research
YouTube Angle
Suggested video title for this topic:
"How scientists count the years in an ocean giant"
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