Chapter 1
The map of the oceans
Chapter 2
Navigation in the dark
Chapter 3
Hazards on the highway
Chapter 4
Humans and the giants
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.
torito Humpback whales sing complex, evolving songs that carry messages across vast ocean basins.
torito Toothed whales use echolocation to build a 3D mental map of their underwater surroundings.
BETA
torito Navigate ocean currents to understand the incredible challenges of whale migration.
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.
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.
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?