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Sperm Whale (Physeter macrocephalus)

Published: 10th May, 2024

Context

Scientists at MIT are using machine learning to study sperm whale communication. Their study focused on whale vocalizations known as codas, short bursts of clicks similar to Morse Code.

Discoveries: 

  • Past research identified about 150 codas, but recent study reveals a complex language structure.
  • After analyzing nearly 9,000 codas from Eastern Caribbean whales, researchers discovered a "sperm whale phonetic alphabet" where clicks form words with different meanings based on rhythm and tempo.

Fact Box: About Sperm Whale

  • The Sperm Whale is a large, dark-colored, toothed whale with a massive, square-shaped head that can make up more than a third of its body length.
  • It has a single blowhole located on the forehead and to the left, which produces a distinctive, angled blow.
  • Spermaceti: Sperm whales are named after the waxy substance known as spermaceti found in their heads. Spermaceti is an oil sac that helps the whales focus sound and was historically used in oil lamps, lubricants, and candles.
  • The sperm whale possesses the largest brain of any creature known to have lived on Earth, indicating high intelligence and complex cognitive abilities.
  • Global Distribution: They inhabit all deep oceans, ranging from the equator to the edge of the pack ice in the Arctic and Antarctic regions.
  • Conservation Status:
    • IUCN: Vulnerable
    • CITES: Appendix I

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