BBC Two documentary Nature’s Weirdest Events investigates bleeding trees and shows a lot of footage of a blood-red liquid oozing out of bark.
Presented by Chris Packham, the BBC Two doc delves into the myths, legends and eye-witness stories, now caught on camera, of blood pumping from the trunks of trees.
Interviewing one footage creator, Packham hears how a scientist and tree surgeon got a ‘shock’ after cutting into a trunk.
He says: “I was chopping down a tree and got the shock of my life”
Pathologist David Rose says this phenomenon is on the increase.
“We get quite a few every year,” says Rose. “They vary from where people have cut the branch off and they bleed to where blood appears to come through the bark… we worry about this bleeding being either a disease or more supernatural.”
“If we cut across the trunk that would be a bit like cutting across the limb of an animal, you would severe the artery and fluid would come gushing out,” explains Packham.
In the video above they show the shocking footage of the seemingly distressed trees.
Also in the programme Packham investigates more unusual natural events, with reports on fish ‘walking’ out of the water in Florida and bees in France that are making multicoloured honey.
* Nature’s Weirdest Events air tonight, Thursday 19 June, at 8pm on BBC Two