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Whales and Whalewatching on the Northeast Coast
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Tomorrow morning, we go in search of . . .
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Whales!
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Where Did They Come From?
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Evolution of Whales1. Diacodexis-primitive terrestrial hooved animal
2. Pakicetus-terrestrial cetacean
3. Ambulocetus-amphibious cetacean
4. Dorudon-fully aquatic early cetacean; note elbow and hindlimbs
5. Balaena-recent whale
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Whale Family Tree
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Anatomy
. . . everything is Whale-sized!
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Dorsal Fin
Flukes
Pectoral Fin/FlipperVentral Grooves
Baleen Eye
Blowhole/nostril
Caudal peduncle
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How Whales Feed
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Finding Food by Echolocation
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Scrimshaw
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Filter Feeding With Baleen
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Filter Feeding
Diatoms Copepods
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Even Fish and Squid
Sand Lance
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Bubble feeding
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Longevity: How Long Does A Whale Live?
16 Year Old Harbor Porpoise Tooth
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Whale Lice
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Migration
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Whaling
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Subsistence Whaling
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Modern Threats: Entanglement
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Overfishing
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Military Applications
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Baleen Whales
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Blue Whales
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Humpbacks
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Minke
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Fin Whales
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Toothed Whales
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Orca
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Atlantic White-sided Dolphins
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How to tell them apart . . . clues for identification
• Dorsal fin shape
• Fluke shape
• Blow pattern
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Dorsal Fins
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Flukes
Humpback
Right
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Blows
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Photoidentification
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Humback Flukes
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Let’s Go Whaling…2003 Style!
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Stellwagon Bank
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A Footprint!
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Behaviors
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Flipper Slapping
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Fish & Other Marine Life
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Sea Birds
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“Uh-oh. Howard. Across the street—whalewatchers.”
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Repeat after me . . .
• Calm seas . . .
• No rain . . .
• Lots of whales!
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