Genetic analysis suggests that the fatty tissues enabling echolocation in toothed whales may have evolved from their skull muscles and bone marrow, changing their eating habits and perception of the world.
Dolphins and other toothed whales –or Odontocetes–use their heads to create sounds that help them communicate, navigate, and hunt in their murky marine world. These sometimes vocal-fry-like sounds reveal information about their murky marine world that is critical for survival.
Hayate Takeuchi et. al. 2024 “Toothed whales have undergone significant degenerations and adaptations to their aquatic lifestyle,” Hayate Takeuchi, a study co-author and PhD student at Hokkaido University in Japan, said in a statement. One of these adaptations was the partial loss of their sense of smell and taste, alongside the gain of echolocation.
Toothed Whales Echolocation Genetic Analysis Fatty Tissues Skull Muscles Bone Marrow
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