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🐋 Why do whales breach

Watch a whale turn speed, muscle, buoyancy, and a spectacular splash into one of the ocean's most mysterious behaviors.

4
lessons
~10 min
to learn
Adults
level
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What you’ll learn

  1. What a breach actually isDefine breaching and describe the physical sequence that sends a whale above the water.A breach is a demanding aerial maneuver, not merely a whale surfacing.
  2. Signals in the splashDescribe how a breach can create a visible and physical signal for other whales.A splash may carry information, especially when researchers study it in social context.
  3. Possible messagesEvaluate communication, courtship, rivalry, and parasite-removal hypotheses.The splash may carry social information, but its meaning is not certain.
  4. More than one reasonUse context to weigh multiple explanations without claiming a single proven cause.Weather, groups, repetition, and follow-up behavior help researchers test possibilities.

Questions this course answers

What makes a breach different from an ordinary surfacing?

Breaching is a deliberate aerial surface behavior in which much of the whale's body leaves the water.

Why might a breach act as a signal?

A breach is conspicuous above and below the surface, so it could help transmit information in some contexts.

Why do researchers record nearby whales during a breach?

Group size, distance, and behavior before and after a breach provide context for testing possible social functions.

What is the most scientifically careful answer to why whales breach?

Evidence supports multiple hypotheses, while no single purpose explains every observed breach.

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