Identifying Dolphins
	Discovering an Ecosystem through Dolphins		"We tracked the dolphins by marks," says Clapp. The research team selected dolphins with particularly identifiable dorsal fins, whether from patterns made by a parasite that grows on them or from propeller injuries made by passing boats. "The river is a relatively high-traffic area. Some dolphins really get nailed," says Clapp. He says they called one dolphin Stumpy because "he had no dorsal fin left."
			Please send comments, questions, and suggestions about Oberlin Online news and feature articles to online.news@oberlin.edu.