interestingasfuck

One of the ways biologists deternmine the age of owls is by looking at the patterns in their wings under UV light. The organic pigment Porphyrin which fades with age allows to see older feathers vs. younger ones. This owl is aged 3 years old as it has blo

One of the ways biologists deternmine the age of owls is by looking at the patterns in their wings under UV light. The organic pigment Porphyrin which fades with age allows to see older feathers vs. younger ones. This owl is aged 3 years old as it has blo

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