Hair & feathers evolved from reptile scales

You can thank a distant reptilian ancestor for your luscious locks. Belinda Smith reports.

Fish scale development: Hair today, teeth and scales yesterday? - ScienceDirect

Reptile Scales, Bird Feathers, Mammal Hairs E

Hair, feathers, and scales: An evolutionary tale

Behind the paper: how to turn scales into feathers - the Node

Feathers, Hair or Scales: Not Much Difference

Reptile Scales Gave Rise to the Hair on Your Head

Getting to the root of scales, feather and hair: As deep as odontodes? - Dhouailly - 2019 - Experimental Dermatology - Wiley Online Library

The origin of feathers and hair (part 3: feathers)

Feathers: they're remarkable, beautiful, functional ? but not low maintenance