(Lane Long), , - engineering.com. : Why Is It so Hard to Build a Robot More Athletic Than a Frog? . , , , , ( Nicolas Reusens, Barcroft) , , . , , , . , . , Science, , . . , , , . , 140 . , . , , , . , , . , . , , , . ( Science) , ? , , . , , . , , , , , , , , , , . , , . , , , , . , , , , . , , . , . , , , .