![Human and avian running on uneven ground: a model-based comparison | Journal of The Royal Society Interface Human and avian running on uneven ground: a model-based comparison | Journal of The Royal Society Interface](https://royalsocietypublishing.org/cms/asset/45ebdcc1-cb8c-4e0f-b84b-ee67ecc70528/rsif20160529f02.jpg)
Human and avian running on uneven ground: a model-based comparison | Journal of The Royal Society Interface
![Tommy Siegel on X: "ok so i got some constructive criticism from my first attempt at drawing birds. many people said the legs weren't realistic enough, i think i finally got it Tommy Siegel on X: "ok so i got some constructive criticism from my first attempt at drawing birds. many people said the legs weren't realistic enough, i think i finally got it](https://pbs.twimg.com/media/EoP_maJW4AMr_NL.jpg)
Tommy Siegel on X: "ok so i got some constructive criticism from my first attempt at drawing birds. many people said the legs weren't realistic enough, i think i finally got it
![Tommy Siegel on X: "ok so i got some constructive criticism from my first attempt at drawing birds. many people said the legs weren't realistic enough, i think i finally got it Tommy Siegel on X: "ok so i got some constructive criticism from my first attempt at drawing birds. many people said the legs weren't realistic enough, i think i finally got it](https://pbs.twimg.com/media/EoP_maKWEAgyxLp.jpg)
Tommy Siegel on X: "ok so i got some constructive criticism from my first attempt at drawing birds. many people said the legs weren't realistic enough, i think i finally got it
Tommy Siegel on X: "working at getting better at drawing realistic birds, tried my hand at four calling birds, three french hens, two turtledoves and a partridge in a pear tree let
![Walking like a dinosaur (or bird): This robot's legs are designed for maximum efficiency | CBC Radio Walking like a dinosaur (or bird): This robot's legs are designed for maximum efficiency | CBC Radio](https://i.cbc.ca/1.6389635.1647615953!/fileImage/httpImage/image.jpeg_gen/derivatives/16x9_780/birdbot-with-birds.jpeg)