Ologies with Alie Ward
Smologies #36: FEATHERS with Allison Shultz
Jan 20, 2024
Dr. Allison Shultz, professional plumologist, discusses feathers and their evolution, characteristics, and functions. Topics include peacock plumes, the blackest black birds, waterproof feathers, and flightless birds. This episode also explores the connection between feathers and mosquito-transmitted diseases.
25:34
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Quick takeaways
- Feathers have multiple functions including thermoregulation, color signaling, and protection of the eyes.
- Feathers are complex structures consisting of a main shaft, barbs, barbules, and can be categorized into different types.
Deep dives
Feathers: Evolution and Function
Feathers evolved before birds and were initially simple structures that resembled fur. Birds are the only living animals with feathers. Feathers are made of keratin and are structurally related to reptile scales. Flight feathers have asymmetrical structures that generate lift. Feathers serve various functions, including thermoregulation, color signaling for mating and territorial displays, and protection of the eyes. Feathers can come in a wide range of colors, including ultraviolet colors that are visible to birds but not humans. Feather color is determined by pigments and the structural arrangement of the feathers.
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