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- 🌅 Elephants Are Blind Without Their Whiskers
🌅 Elephants Are Blind Without Their Whiskers
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WHAT TO KNOW
A new study by researchers at the Max Planck Institute in Germany found elephant whiskers have an innate “intelligence” that highlights precisely where contact happens along each whisker, giving the world’s largest land mammal a powerful sense of touch that allows them to carefully manipulate objects and compensates for their poor eyesight. Elephants cannot regrow any of their roughly 1,000 whiskers, meaning losing one can create a permanent sensory blind spot on their trunk, which they use for almost every aspect of daily life.
WHY IT MATTERS
Elephants constantly use their trunks to feel their way through surroundings as they search for food and exchange social touch. The researchers found the whiskers on their trunks are shaped like blades of grass, with flat surfaces and square-like sides at the base. The whiskers also have stiff bases that gradually transition into soft, rubber-like tips to help them glide past objects with ease, along with a network of tiny holes that help absorb impact. Together, the three properties amplify touch signals along each whisker, acting like a tactile sensory organ that helps elephants navigate despite their other limited senses.
CONNECT THE DOTS
The researchers say elephant whiskers are like “aliens” in the world of whiskers, as their structure is unlike any other known whisker structure in nearly every single way (though elephant whiskers share similarities with cat whiskers). The researchers are now working to apply the new insights to create nature-inspired sensors for applications in robotics and intelligent systems.
