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• Why do porpoises and dolphins find it so difficult to avoid fishing nets? - Whale and Dolphin Conservation

Why do porpoises and dolphins find it so difficult to avoid fishing nets? - Whale and Dolphin Conservation

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Dolphins, Whales and Porpoises: 2002-2010 Conservation - IUCN

Dolphins vs. porpoises: What's the difference?

Porpoise - Wikipedia

How Fishing Vessels Keep Dolphins From Getting Caught in Nets

Setting nets below the surface means fishermen catch almost 80 percent fewer dolphins and whales

A sailor's guide to whales and dolphins - Yachting Monthly

Nets killing off 10 dolphin, porpoise species

Whale and Dolphin Conservation

Marine Mammal Conservation & How Activists Saved the Dolphins - Bioneers

Whales, Dolphins Could Become Extinct 'Within Our Lifetimes,' Scientists Warn

Threats to Whales & Dolphins - Dolphin Research Center