Fish and grasshoppers...

...really don't seem to have that much in common with vehicular safety systems. A while ago researchers at Volvo car corporation mentioned that they were looking to behaviors observed in swarms of grasshoppers as an inspiration for collision avoidance systems in vehicles. Apparently Nissan is thinking along the same lines, in a recent press release they talk about how mimicking the behavior of schools of fish can be used for collision avoidance:

"In 2008, it was the flight of the bumblebee that inspired Nissan's Biomimetic Car Robot Drive "BR23C" concept. In 2009, fish-inspired technology takes center stage in Nissan Motor Co., Ltd.'s new Nissan "EPORO*1" robot car concept, which is designed to travel in a group of like-vehicles, mimicking the behavioral patterns of a school of fish in avoiding obstacles without colliding with each other."

For an overview of Volvos grasshopper ideas check out the following video: