![Ants estimate distance before building a ladder from their bodies](https://ic-cdn.flipboard.com/arstechnica.net/2c2edc455fa53452c4b327a6ceb369cb732f1c7c/_large.jpeg)
How do social animals judge risk/reward? A new study with ants provides one answer. Social insects, which don't have very large nervous systems, are …
Author: John Timmer
* VIEW the article originally published here.
** MORE curations: Al Cannistra at San Antonio ONE here.