HKBWS BBS 香 港 觀 鳥 會 新 聞 組    Discussion Area 討論區    General 一般問題 (Moderators: BBS Moderators, Webcreeper)    Birds can see ultraviolet 雀鳥可見紫外光 « Previous topic | Next topic » Pages: 1  Reply Send Topic Print    Author  Topic: Birds can see ultraviolet 雀鳥可見紫外光  (Read 1183 times) Webcreeper BBS Moderator BBS Member BBS God I'm a webcreeper     Gender: Posts: 1031 Birds can see ultraviolet 雀鳥可見紫外光 « on: Jul 26th, 2006, 6:56pm » Quote Modify Scientific American July 2006 What Birds See   We humans customarily assume that our visual system sits atop a pinnacle of evolutionary success. It enables us to appreciate space in three dimensions, to detect objects from a distance and to move about safely. We are exquisitely able to recognize other individuals and to read their emotions from mere glimpses of their faces. In fact, we are such visual animals that we have difficulty imagining the sensory worlds of creatures whose capacities extend to other realms--a night-hunting bat, for example, that finds small insects by listening to the echoes of its own high-pitched call.     國內版《環球科學》2006 年第八期 鳥眼看世界：更繽紛的色彩   人類雖然號稱“萬物之靈”，卻在進化的滄海桑田間，早早捨棄了一部分絢爛的色 彩，專注於今天我們眼中的世界。而鳥類卻不同，擁有4種視錐細胞的獨特視覺系 統，讓它們保留了看到紫外光的能力，能看到超越人類眼界的繽紛世界。 « Last Edit: Jul 26th, 2006, 7:10pm by Webcreeper » Logged 　　　　　　　>}o-}o-　　　>}o-　　　　　　　　　>}o-　　　　.......x Pages: 1  Reply Send Topic Print Forum Jump: ----------------------------- Announcement 簡訊通告 -----------------------------  - Membership Affair 會員事務   - Outings / Activities 戶外活動 / 講座   - Projects 項目計劃   - Crested Bulbul Club 紅耳鵯俱樂部 ----------------------------- Discussion Area 討論區 -----------------------------=> General 一般問題   - Conservation 自然保育   - Bird Identification 鳥類辨識   - Birding Reports & Tips 觀鳥報告及心得   - Photo Gallery 相片分享 I   - Photo Gallery 相片分享 II ----------------------------- Special Topics 特別主題 -----------------------------  - Wild Birds & Avian Flu 野鳥與禽流感   - Sustainable Management Scheme in Long Valley 塱原可持續生態管理計劃   - Black-faced Spoonbill 黑臉琵鷺   - Goodbye Penfold 告別彭福   - Tern Conservation 燕鷗保育   - Black-eared Kite 鳶(麻鷹)   - Swifts and Swallows 燕與雨燕   - China Birdwatching Network 中國觀鳥活動網絡   - Winter Altas Survey 冬季鳥類普查   - Nature Conservation Policy 自然保育政策 ----------------------------- Knowledge Sharing 知識分享 -----------------------------  - FAQ 常見問題   - Archive 資料重溫 « Previous topic | Next topic »

香 港 觀 鳥 會
Hong Kong Bird Watching Society

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