Masters of Construction: Bird Nests
Consider this: the average human brain weighs roughly 1300 grams (2.86 pounds). A warbler brain weighs about 513 mg. (.00113 pounds). But while a human must spend untold hours and tens of thousands of dollars in order to learn to build a house, the warbler does so as a natural part of its growth process, and in response Spring’s most basic instinct: the urge to procreate. Granted, the plan […]
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