Dinosaur Frills and Sexual Selection

The video explores the purpose of the Triceratops frill, initially thought to be for defense. However, evidence suggests it was used for sexual selection, as it grows significantly during sexual maturity. The frill likely served as an honest signal of health and reproductive fitness, similar to mutual sexual selection seen in some modern animals. The discussion includes comparisons with other dinosaurs and the concept of mutual sexual selection, where both sexes display ornamentation.

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