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 theseDesk, Couch sofa, Crick, Skateboard, Amusement park, Fat guy, Parrot, Hair salon, Dam, Mush, 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 #3760 PSY by Juvenilia Alexandrino


anonymous
anonymous
sketch #1668 SUNSET


anonymous
anonymous
sketch #5160 Marilyn Monroe by Muhammet Karadoğan


sketchmaster
sketch #2460 Zayn Malik of One Direction by sketchmaster


anonymous
anonymous
sketch #1185


anonymous
anonymous
sketch #1255 something


anonymous
anonymous
sketch #2023 For variety our own good friends fully understand states; through hard knocks we all our own good friends. priceminister


anonymous
anonymous
sketch #1041 strawberries


anonymous
anonymous
sketch #3538


anonymous
anonymous
sketch #690 barco


anonymous
anonymous
sketch #4351


anonymous
anonymous
sketch #4685 Dave Mustaine by Erika Ishikawa


anonymous
anonymous
sketch #3388 Fight Club by Alvaro Velasquez


anonymous
anonymous
sketch #4454 Lisa by Muhammad Raiyaan


anonymous
anonymous
sketch #2144


anonymous
anonymous
sketch #5340 Amazing Dragon


anonymous
anonymous
sketch #4012 Owl sketch


anonymous
anonymous
sketch #3063


anonymous
anonymous
sketch #2889


anonymous
anonymous
sketch #5128 Italo Italo Abreu Jack Supple


Rachel Roe
sketch #2644 Purple bun


sketchmaster
sketch #2598


anonymous
anonymous
sketch #389


anonymous
anonymous
sketch #4358 Wink Károly Benkő


anonymous
anonymous
sketch #5361 Emma Watson by Glynis June Williams


anonymous
anonymous
sketch #5225 The Friendship by Annabelle Bourget


anonymous
anonymous
sketch #2340


sketchmaster
sketch #2625 Dragon by sketchmaster


anonymous
anonymous
sketch #5220

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