CaylaJosephinee
CaylaJosephinee
24.04.2020 • 
Biology

Male turkeys have a snood, which is a flap of skin that hangs across their beak. Snood length is negatively correlated with parasite load (e.g., males with longer snoods have fewer parasites), and females prefer to mate with long-snooded males. The snood is an example of:

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