From the moment that it touches insect larva with its proboscis, it takes just 230 milliseconds to check that it is edible and gobble it up. This is the fastest known reaction time in the animal kingdom, taking less than half the 650 milliseconds that a human driver needs to brake for a red light.

The star-nosed mole, which lives in perpetual darkness, uses its array of 22 nasal appendages in the same way that a blind person uses a cane. The main difference is the speed with which the appendages probe the ground. They can examine 13 targets every second.

The mole also benefits from well-adapted teeth, which are smaller than those of other moles and are formed like tweezers.

The research was carried out at Vanderbilt University in Nashville, Tennessee, and is published today in Nature. Kenneth Catania, who led the study, said: “Most predators take times ranging from minutes to seconds to handle their prey. The only things I’ve found that come even close are some species of fish.”

The moles often make mistakes, lunging in the wrong direction before correcting their strikes. This suggests that that they are operating close to the limits of the speed of their brain. “If additional research confirms that this is the case, then these little animals can inform us about an important limitation to the brain’s ability to process information and make decisions,” Dr Catania said.

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