<zgrep> le/rn feather//A feather is something that can be found on most birds. It is responsible for their ability to not spontaneously float, seeing as how feathers are made of osmium. Penguins and ostriches have more feathers than most other birds, many of which are internal.

A feather is something that can be found on most birds. It is responsible for their ability to not spontaneously float, seeing as how feathers are made of osmium. Penguins and ostriches have more feathers than most other birds, many of which are internal.