为什么鸟类作为恐龙的后代,生物学上被分为独立的“鸟纲”而不是蜥形纲蜥臀目下的“鸟亚目”? 知乎 Template




You need a modern browser try chrome, to view this.

Background image: Hide Show

View Larger Image Image Credit: zhihu.com






Try and sketch some of theseOak, Game, Fork, Hot water bottle, Elixir, Swimming pool, Barometer, Cards, Lobby, Anteater, view more ideas


please wait, the page is loading...

More Sketches

Take a peek at some of the sketches created by our users, are you a sketchite?

anonymous
anonymous
sketch #717


sketchmaster
sketch #2635 Zoidberg by sketchmaster


anonymous
anonymous
sketch #3344 Homer by Samuel Roberto


anonymous
anonymous
sketch #5212 Katy Perry by Shahid Khokhar


anonymous
anonymous
sketch #3676 Sceptical horse by Koes Maung


anonymous
anonymous
sketch #5087


anonymous
anonymous
sketch #2982 Lion by Ati Gohary


anonymous
anonymous
sketch #3047 Oppa Pika Style by Itz Rakhi


anonymous
anonymous
sketch #4852


anonymous
anonymous
sketch #3420


anonymous
anonymous
sketch #1459 khvjkhu


Tom Kelly
sketch #521 A hungry caterpillar


anonymous
anonymous
sketch #4601 PSY Gentleman by Luis Daniel Sanchez Ramirez


anonymous
anonymous
sketch #3760 PSY by Juvenilia Alexandrino


anonymous
anonymous
sketch #5327


Rachel Roe
sketch #141 Sunset


anonymous
anonymous
sketch #4436 Bob Marley by Luiza Irma


anonymous
anonymous
sketch #4646 Panda by Raimundo Santos


anonymous
anonymous
sketch #5209


Helyryn
sketch #293 jdjdjdjdj


anonymous
anonymous
sketch #20344


anonymous
anonymous
sketch #2582


anonymous
anonymous
sketch #5150 Regina from Dino Crisis by Hsien-Ying Hsieh


anonymous
anonymous
sketch #5289


anonymous
anonymous
sketch #4916


anonymous
anonymous
sketch #3466

tomski为什么鸟类作为恐龙的后代,生物学上被分为独立的“鸟纲”而不是蜥形纲蜥臀目下的“鸟亚目”? 知乎 coloring