This is the horrifying moment a monkey plucks a seagull from the sky and savagely smashes it against a pole leaving zoo visitors distraught.
Families were traumatised after the aggressive monkey mauled the bird to death in front of young children.
The creature 'transformed into King Kong' and scaled a 20ft-tall structure at Chester Zoo.
It snatched a passing bird out of the air and hammered it against its perch before eating the gull during a deadly five-minute battering.
Bec Adamson was enjoying a 'lovely day out' at the Chester Zoo with her son when he saw the monkey at the top of the pole, the Manchester Evening News reports.
The 32-year-old began filming and captured the fearsome animal holding its prey by the head and repeatedly slamming it against the side of his enclosure.
The monkey then even appears to 'lick blood off its fingers' as the outstretched bird becomes limp.
Startled Bec, who was also with former partner Jamie Stockall, 35, says the zoo animal then dropped the seagull, so it quickly climbed down to grab the 'insides' from the carcass and take it away to eat.
Despite the 'violent' ordeal, the mum-of-one claims son Dominik Minshull, five, was fascinated as it felt like the David Attenborough nature clips he loves so much.
The hospitality worker posted her startling video to TikTok on Sunda and it's since been viewed more than two million times.
Bec, from Northwich, Cheshire, said: "It was like watching the real King Kong. He was really slamming it against the pole and pulling at its feathers. It was just really aggressive and mad
"We'd just been to see the rhinos, so we were walking across, then I saw all these seagulls circling and then this monkey caught one as it was flying past. It was really clever.
"I told Jamie and Dominik looked too, so I started filming. When I zoomed in I could see he was battering the f**k out of this seagull. I couldn't believe I was catching it on video."
Her TikTok post, sarcastically captioned 'lovely family day', has been liked 40,000 times and has attracted more than 1,000 comments.
She added: "Other people started watching too and suddenly there were about 100 people watching. It was really violent, but it's natural. It's what happens in nature.
"Dominik asked if David Attenborough was watching as well because we watch this sort of thing at home. He just thought it was amazing because he thought they were fighting.
"It could have scarred him for life. If I was his age, I'd have been terrified. I think I'm raising a psychopath.
"I've seen the comments on my video saying it's like the next King Kong movie. I noticed he was licking his fingers. He was really enjoying his meal.
"When the monkey dropped the seagull he slid down the pole so quickly, then it was pulling its insides out before he pulled it back into the cage.
"There were loads of seagulls flying over the top but he just picked that one. Poor thing.
"You can't help but keep watching. We're all like little psychopaths watching this seagull getting mauled, but we want to find out what's next."
