How do platypuses detect prey underwater with their bills?
Quick Answer
Platypuses use electroreception to sense tiny electric signals from moving prey. Their bill can detect the weak currents produced by muscle contractions in aquatic animals.
The Full Story
The platypus bill is packed with sensory receptors that detect both touch and electrical signals. When prey such as worms, insect larvae, or small crustaceans move underwater, they produce faint bioelectric fields. The platypus can locate these signals even with its eyes, ears, and nostrils closed underwater. This ability is especially useful because platypuses often forage in murky streams where vision is limited. It is one of the most unusual hunting adaptations among mammals.
Key Facts
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