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Dave the earthworm found to the biggest ever in UK and then immediately killed by scientists

The annelid was 40cm long and weighed 26g – the size of a small snake

Andrew Griffin
Friday 04 November 2016 10:51 EDT
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Emma Sherlock with Dave the earthworm, who has has wriggled his way into the record books after surfacing in Cheshire
Emma Sherlock with Dave the earthworm, who has has wriggled his way into the record books after surfacing in Cheshire (PA wire)

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The biggest earthworm ever found in Britain has been discovered and then immediately killed by scientists.

Dave was the size of a small snake – 40cm long and weighing 26g. He was discovered crawling around in Cheshire and has now been killed so that he can be preserved.

The worm was found by Paul Rees from Widnes, who spotted the monster Lumbricus terrestris in his vegetable patch. It was named Dave by Mr Rees’s stepson, George.

Natural History Museum scientist Emma Sherlock, who chairs the Earthworm Society of Britain, said: "I was bowled over by the size of this worm when I opened the plastic box they sent it in. Not only is it really long, it is almost twice as heavy as any other wild earthworm ever seen, weighing the same as a small chocolate bar."

It’s still a mystery as to how the worm got to be so long.

"With worms this size Paul must have an incredibly fertile and well-drained veg plot with decaying matter quickly recycled back into the soil,” said Ms Sherlock. “Earthworms are incredibly important to keep soils healthy.

"I look forward to seeing if anyone can find an even bigger example by taking part in the Earthworm Watch survey this autumn.”

Earthworm Watch is a countrywide survey of earthworms and soil quality that is run by the Natural History Museum and other groups.

The previous record holders were earthworms found on the Scottish island of Rum. They were found last year and measured 39.6cm, but were much lighter – the heaviest was just 12.6g.

Dave the earthworm
Dave the earthworm (PA wire)

Their size is thought to have occurred because of a lack of predators and rich soil.

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