Graduate student Leslie Burch and biology professor Bill Rogers perform research on the Tahuayo River in Peru.  Over the summer they mapped some of the river with the help of the GPS unit in Rogers’ hand. 

The pair  observed the Pink dolphin, one of the two river dolphins found in the Amazon drainage, by looking at its distribution in the river and at the behavior of mother-calf pairs.  They also recorded ultrasound communications to correlate certain sounds with particular behaviors.