Description: Central Artery construction aggravates Boston rats problem. Huge rat trapped in cage. Researcher puts transmitter on rat to track movement in field and water. Sam Wood, rodent control officer.
Description: Interview with New England Aquarium official about alleged harpooning of great white shark off Long Island. Inside Aquarium, looking into giant tank. Sharks of various sizes and colors swim past. Close-up on dorsal fin in water. Lower view into tank. Large tortoise and many fish glide by. Head on view of approaching shark - eyes, mouth.