中文注释:作者: Tim Laman
图片故事:高清壁纸:英文注释:A rhinoceros hornbill—one of 54 species of hornbills—perches on a fig tree in Gunung Palung National Park. The casque, a protrusion on the upper bill that gives hornbills their name, may play a role in sexual selection or amplify the birds' calls. From loud barks to thunderous booms, hornbill cries resound across a range that extends from the dry savannas of sub-Saharan Africa to the lush forests of Melanesia. (Text adapted from and photograph shot on assignment for, but not published in, " The Shrinking World of Hornbills," July 1999, National Geographic magazine) 相关文章: |


