用戶:Ala culta
文明鳥 (Ala culta) 是未來一種鳥,也是其中唯一發展出文明的成員。
身體形態
文明鳥是一種體型中等的鳴禽,擁有較短的三角形直喙。它們的每個翅膀上有20根飛羽,包括10根初級飛羽、6根次級飛羽和4根三級飛羽。Unlike most perching birds, they have 10 rectrices on their tails. The species has a very diverse genetic pool, with a great variety of plumage types among billions of its specimens over the planet.
習性生態
文明鳥是一種雜食性動物,其常見食物包括種子、果實、樹葉等植物部位,以及魚類、哺乳類和其他蜥類等動物。它們的胃可以容納相當於自身重量25%的食物。
認知能力
移動方式
文明鳥擁有不俗的行動能力,且適應性極強。前肢支撐的羽毛形成一對短而圓的翅膀,使得它們在障礙物間靈活穿梭。強壯的手臂能讓它們的飛行速度達到每秒25米。 but that would still make them easy to be caught up by falcons when in the open air. Long legs that are up to 50% their body length and exceptionally thick leg bones having circumferences of up to 80 mm allow them to effortlessly walk on land and reach speeds of 10 m/s.
體型大小
文明鳥是已知最大的雀形目成員,成年平均重量高達2.5千克,最大個體重量據推測甚至能達到4千克。巨大的體型使它們免受多數猛禽的威脅,但真雕屬、海雕屬和角雕屬的成員依舊會對它們構成威脅。
測量標準 | 測量結果 |
---|---|
長度 (喙尖 - 尾羽) | 100 cm |
長度 (喙尖 - 尾椎) | 64 cm |
寬度 (最長飛羽間) | 160 cm |
寬度 (遠端指骨間) | 128 cm |
高度 (地面 - 頭頂) | 80 cm |
高度 (地面 - 薦椎) | 50 cm |
頭骨 (喙尖 - 頂骨) | 20 cm |
顎骨 (喙尖 - 隅骨) | 16 cm |
分類位置
Ala culta is the only representative of the family Alaidae, which is believed to be a close relative to the genus Corvus, and inherited the high intelligence alongside the superior ability of tool-making from their common ancestor.