Chapter 1
The map of the oceans
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Chapter 2
Navigation in the dark
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Chapter 3
Hazards on the highway
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Chapter 4
Humans and the giants
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YOUR GOAL
Master of The great whale highways
Ch 2 · Navigation in the dark
torito Whale Migration Compass
Magnetic field! Magnetic field! Through the deep sea, their true path revealed.
Glossary
baleen (noun)
Long, flexible plates made of keratin that grow inside the mouths of certain whales instead of teeth. They act like a giant comb, allowing the whale to filter out mouthfuls of seawater while trapping tons of tiny, tasty krill inside.
Long, flexible plates made of keratin that grow inside the mouths of certain whales instead of teeth. They act like a giant comb, allowing the whale to filter out mouthfuls of seawater while trapping tons of tiny, tasty krill inside.
Fun Fact
Deep ocean songs: Low-frequency blue whale songs can travel over 500 miles through the ocean, allowing them to communicate across entire basins.
Quiz
Which sensory mechanism is most useful for deep-diving whales hunting in complete darkness?
Quiz
What material in whale brains is thought to help them sense Earth's magnetic field?
Quiz
What is the term for when a whale thrusts its head vertically out of the water to look around?