article_snippet.sent: Sometimes walking in a straight line without tripping over with just two feet is enough of a challenge.
article_snippet.sent: So imagine the kind of coordination it would require if you had eight legs.
article_snippet.sent: biologists at the Hebrew University of Jerusalem in Israel found that the orientation of the creature's body and the crawling direction are controlled independently in the brain.
article_snippet.sent: The thrust comes from arms that push by elongation rather than arms that pull.
highlights_snippet.sent: Rather than pulling themselves along themselves use themselves legs to push instead .
  
highlights_snippet.sent: themselves can move in one direction while themselves bodies face a different direction .
  