Evolution of Whale Echolocation Organs from Jaw Muscles
Toothed Whale Echolocation Organs Evolved from Jaw Muscles
Tags: Hokkaido University, Japan, Science & Exploration, Healthcare & Lifesciences
Researchers at Hokkaido University have discovered that the acoustic fat bodies in toothed whales, used for echolocation, evolved from the jaw muscles and bone marrow. This genetic analysis revealed that these fat bodies, such as the melon and extramandibular fat bodies, evolved as part of the whale’s adaptation to life in water, helping them use sound to navigate and hunt. Genes related to muscle function, typically involved in chewing, were active in the fat bodies, showing their evolutionary origin. The study also found immune-related gene activity in other fat bodies, suggesting additional functions. This research could enhance understanding of evolutionary tradeoffs in toothed whales.
IP Type or Form Factor: Discovery & Research; Material
TRL: 2 - technology concept and/or application formulated
Industry or Tech Area: Marine Exploration & Conservation; Biotechnology
