In Reply to: Interesting dolphin activity posted by Jeff Shaw on June 03, 2007 at 19:09:46:

I volunteer with the Texas Marine Mammal Stranding Network, and I'm studying Marine Biology at Texas A&M at Galveston. Dolphins hunt in pods, and use the group to help herd sardine and anchovie schools into a tighter mass, thus increasing the density of the target food group and allowing the dolphins to feed. The dolphin that charges across the circle is the one taking a bite, while the rest of the pod fences in the prey. Using cooperative hunting techniques obviously benefits the entire pod, and it's a neat activity to watch.