How did Dave the worm die?

A record-breaking earthworm nicknamed Dave is trending on social media after it was revealed he was killed in "the sad bit of science".

The annelid, which measured 40cm (15.7in), was found in a vegetable plot in Widnes, Cheshire, before being sent to the Natural History Museum in London.

Scientist Emma Sherlock said: "Dave is now preserved in the museum collections, and will now be useful to science."

News of Dave's death led to #justicefordave trending on Twitter.

BBC Breakfast unearthed the details.