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The Teche Greyhound Lines (called also Teche or TGL), a highway-coach carrier, was a Greyhound regional operating company, based in New Orleans, Louisiana, USA, from 1934 until 1954, when it (along with the Dixie Greyhound Lines) was merged into the Southeastern Greyhound Lines, a neighboring operating company. [Teche, pronounced as "tesh", is a word of French origin, a word ( téche ) for "snake" – due to a legend (about a large snake in the region) which the natives had told to the early French traders and explorers – from the name of the Bayou Teche in the swamp country in coastal Louisiana.] Correction note: Not named Teche because of a big snake in the region; but, because the Bayou Teche has a snakelike appearance as it meanders through the land curving this way and then that way, similar to snakelike movements. Contents 1 Origin 2 Wheeling and dealing 3 Background and participation of O.W. Townsend 4 Further developments 5 Merg...

禿鷹與牠的黑色鳥喙。 喙 是鸟类上下颌包被的硬角质鞘，相當於哺乳动物唇和齿的功能。喙的主要功能是取食和梳理羽毛。某些恐龍也有類似的構造，不過不一定與鳥類同源。 喙的形态 达尔文正是研究了加拉帕戈斯群岛雀类的喙的变化从而提出了进化论的思想。喙的形态由于鸟类取食方式不同而有很大变异。鳥的啄可大致分為以下各類: Generalist 家鴉 Insect catching 食昆蟲的鳥-尖而細長，方便從窄縫中把昆蟲抽出。 Grain eating 红腹灰雀 Coniferous-seed eating 交嘴雀的上下喙是交叉的，无法对齐，这样可以方便从鲜松果中取出松子。 Nectar feeding 太阳鸟 Fruit eating 食果子的鳥-粗短成圓錐形，方便把堅硬的果子咬破。 Chiseling 啄木鸟的喙又硬又直，能撬开树皮或者在树干上啄洞。 Dip netting 褐鹈鹕的喙下有一个可以自由伸缩的大皮囊，可以用来储存食物。 Surface skimming 剪嘴鸥的下喙比上喙大而长，它贴近水面飞行时，可以用下喙在水中捞取食物。 Scything 反嘴鹬 Probing 鹮嘴鹬 Filter feeding 红鹳的上喙隆起而庞大，能像勺子一样捞取水中的藻类。 Aerial fishing 食魚的鳥尖長及銳利，方便叉著游動的魚。 Pursuit fishing 红胸秋沙鸭的喙扁平而寬闊、边缘呈锯齿状，能把水中的浮游生物滤出来。 Scavenging 食腐动物 Raptorial 食肉的鳥有粗壯、带鉤的喙，非常锋利，方便捕殺及撕開獵物。 喙的特殊结构 犀鸟的上喙基部形成巨大的头盔，其下的骨骼有窦隙形成海绵状结构以减轻喙的重量。 秧鸡科的鸟，如骨顶（ Fulica atra ）的上喙基部向后延伸形成额板，下部也有骨板支持。 卵牙：在雏鸟破壳前，其上喙顶端都长有一个向上突出的角质结构，称为“卵牙”，卵牙是用来帮助雏鸟啄开卵壳的，出壳后2-3天脱落。 外部連結 维基共享资源中相关的多媒体资源： 喙 查 论 编 ...

This article is about the U.S. state of Mississippi. For the river, see Mississippi River. For other uses, see Mississippi (disambiguation). State of Mississippi Flag Seal Nickname(s): "The Magnolia State", "The Hospitality State" Motto(s): Virtute et Armis State song(s): " Go, Mississippi " Official language English Demonym Mississippian Capital .mw-parser-output .nobold{font-weight:normal} (and largest city) Jackson Largest metro Greater Jackson Area Ranked 32nd  • Total 48,430 sq mi (125,443 km 2 )  • Width 170 miles (275 km)  • Length 340 miles (545 km)  • % water 3%  • Latitude 30° 12′ N to 35° N  • Longitude 88° 06′ W to 91° 39′ W Population Ranked 34th  • Total 2,984,100 (2017 est.) [1]  • Density 63.5/sq mi  (24.5/km 2 ) Ranked 32nd  • Median household income $40,037 [2] (51s/t) Elevation  • Highest point Woodall Mountain [3] [4] [5] 807 ft (...