The Surprising Reason Birds First Grew Feathers
0
0
3,325 विचारों·
01/01/24
में
Discovery
When birds first grew feathers 150 million years ago, their function was not necessarily to help with flight. From: DAVID ATTENBOROUGH S CONQUEST OF THE SKIES: Rivals http://bit.ly/1YjydHc
और दिखाओ
0 टिप्पणियाँ
sort इसके अनुसार क्रमबद्ध करें
