Was kann ich tun?
Finden
Anzeige
Hipervinculo Ciencias de la Tierra y Medioambiente
A bird’s feathers are more than mere decoration. In addition to insulation and flight, feathers help birds stay afloat on bodies of water. A feather has a hollow shaft and interlocking barbs that form ...
Add to Didactalia Arrastra el botón a la barra de marcadores del navegador y comparte tus contenidos preferidos. Más info...