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The way an elephant manipulates its trunk to eat and drink could lead to better robots, researchers say. Elephants dilate their nostrils to create more space in their trunks, allowing them to store up to 5.5 liters (1.45 gallons) of water, according to their new study. They can also suck up three liters (0.79 gallons) per second a speed 30 times faster than a human sneeze (150 meters per second/330 mph), the researchers found. The researchers wanted to better understand the physics of how elephants use their trunks to move and manipulate air, water, food, and other objects. They also wanted to learn if the mechanics could inspire the creation of more efficient robots that use air motion to hold and move things.

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