Dolphins ‘deliberately get high’ on puffer fish nerve toxins by carefully chewing and passing them around

Extraordinary scenes filmed for new documentary showing the marine mammals in their natural habitats

A A A

Dolphins are thought of as one of the most intelligent species in the animal kingdom – and experts believe they have put their ingenuity to use in the pursuit of getting “high”.

In extraordinary scenes filmed for a new documentary, young dolphins were seen carefully manipulating a certain kind of puffer fish which, if provoked, releases a nerve toxin.

Though large doses of the toxin can be deadly, in small amounts it is known to produce a narcotic effect, and the dolphins appeared to have worked out how to make the fish release just the right amount.

Carefully chewing on the puffer and passing it between one another, the marine mammals then enter what seems to be a trance-like state.

The behaviour was captured on camera by the makers of Dolphins: Spy in the Pod, a series produced for BBC One by the award-winning wildlife documentary producer John Downer.

Rob Pilley, a zoologist who also worked as a producer on the series, told the Sunday Times: “This was a case of young dolphins purposely experimenting with something we know to be intoxicating.

“After chewing the puffer gently and passing it round, they began acting most peculiarly, hanging around with their noses at the surface as if fascinated by their own reflection.

“It reminded us of that craze a few years ago when people started licking toads to get a buzz, especially the way they hung there in a daze afterwards. It was the most extraordinary thing to see.”

The documentary makers used spy cameras hidden in fake turtles, fish and squid to film 900 hours of footage showing dolphins in their natural habitats.

The scenes showing them “using” puffer fish will feature in the second episode of the series, which starts on Thursday.

It is the latest in a long run of wildlife documentaries made by Downer which use similar spy camera techniques. Previous series include Penguins: Spy in the Huddle, which like the Dolphins programme was narrated by David Tennant, Elephants: Spy in the Herd with David Attenborough and Lions: Spy in the Den.

Downer said: “The spy creatures were designed to infiltrate the dolphins’ hidden lives by looking like the marine creatures a dolphin might encounter in their everyday lives.”

News
Ian Thorpe had Rio 2016 in his sights
people
Sport
Jonathan de Guzman of the Netherlands and Willian of Brazil compete for the ball
world cup 2014LIVE BLOG: Hosts Brazil take on the Netherlands in third-place play-off
News
Tommy Ramone performing at The Old Waldorf Nightclub in 1978 in San Francisco, California.
peopleDrummer Tommy was last surviving member of seminal band
Life and Style
Swimsuit, £245, by Agent Provocateur
fashion

Diving in at the deep end is no excuse for shirking the style stakes

PROMOTED VIDEO
Have you tried new the Independent Digital Edition apps?
Life and Style
Several male celebrities have confessed to being on a diet, including, from left to right, Hugh Grant, Benedict Cumberbatch and Ryan Reynolds
life...and the weight loss industry is rubbing its hands in glee
Voices
Spectators photograph the Tour de France riders as they make their way through the Yorkshire countryside
voicesHoward Jacobson: Line the streets for a cycling race? You might just as well watch a swarm of wasps
Life and Style
lifeHere's one answer to an inquisitive Reddit user's question
Arts and Entertainment
'Eminem's recovery from substance abuse has made him a more potent performer, with physical charisma and energy he never had before'
arts + entsReview: Wembley Stadium ***
Sport
Joe Root and James Anderson celebrate their record-beaking partnership
cricketEngland's last-wicket stand against India rewrites the history books
News
peopleDave Legeno, the actor who played werewolf Fenrir Greyback in the Harry Potter films, has died
Have you tried new the Independent Digital Edition apps?
iJobs Job Widget
iJobs General

Information Security Manager (ISO 27001, Accreditation, ITIL)

£70000 per annum: Harrington Starr: Information Security Manager (ISO 27001, A...

C# Developer (HTML5, JavaScript, ASP.NET, Mathematics, Entity)

£30000 - £45000 per annum + Benefits + Bonus: Harrington Starr: C# Developer (...

C# Integration Developer (.NET, Tibco EMS, SQL 2008/2012, XML)

£60000 - £80000 per annum + Benefits + Bonus: Harrington Starr: C# Integration...

Biztalk - outstanding opportunity

£75000 - £85000 per annum + ex bens: Deerfoot IT Resources Limited: Biztalk Te...

Day In a Page

A History of the First World War in 100 Moments: Peace without magnanimity - the summit in a railway siding that ended the fighting

A History of the First World War in 100 Moments

Peace without magnanimity - the summit in a railway siding that ended the fighting
Scottish independence: How the Commonwealth Games could swing the vote

Scottish independence: How the Commonwealth Games could swing the vote

In the final part of our series, Chris Green arrives in Glasgow - a host city struggling to keep the politics out of its celebration of sport
Out in the cold: A writer spends a night on the streets and hears the stories of the homeless

A writer spends a night on the streets

Rough sleepers - the homeless, the destitute and the drunk - exist in every city. Will Nicoll meets those whose luck has run out
Striking new stations, high-speed links and (whisper it) better services - the UK's railways are entering a new golden age

UK's railways are entering a new golden age

New stations are opening across the country and our railways appear to be entering an era not seen in Britain since the early 1950s
Conchita Wurst becomes a 'bride' on the Paris catwalk - and proves there is life after Eurovision

Conchita becomes a 'bride' on Paris catwalk

Alexander Fury salutes the Eurovision Song Contest winner's latest triumph
Pétanque World Championship in Marseilles hit by

Pétanque 'world cup' hit by death threats

This year's most acrimonious sporting event took place in France, not Brazil. How did pétanque get so passionate?
Whelks are healthy, versatile and sustainable - so why did we stop eating them in the UK?

Why did we stop eating whelks?

Whelks were the Victorian equivalent of the donor kebab and our stocks are abundant. So why do we now export them all to the Far East?
10 best women's sunglasses

In the shade: 10 best women's sunglasses

From luxury bespoke eyewear to fun festival sunnies, we round up the shades to be seen in this summer
Germany vs Argentina World Cup 2014: Lionel Messi? Javier Mascherano is key for Argentina...

World Cup final: Messi? Mascherano is key for Argentina...

No 10 is always centre of attention but Barça team-mate is just as crucial to finalists’ hopes
Siobhan-Marie O’Connor: Swimmer knows she needs Glasgow joy on road to Rio

Siobhan-Marie O’Connor: Swimmer needs Glasgow joy on road to Rio

18-year-old says this month’s Commonwealth Games are a key staging post in her career before time slips away
The true Gaza back-story that the Israelis aren’t telling this week

The true Gaza back-story that the Israelis aren’t telling this week

A future Palestine state will have no borders and be an enclave within Israel, surrounded on all sides by Israeli-held territory, says Robert Fisk
A History of the First World War in 100 Moments: The German people demand an end to the fighting

A History of the First World War in 100 Moments

The German people demand an end to the fighting
New play by Oscar Wilde's grandson reveals what the Irish wit said at his trials

New play reveals what Oscar Wilde said at trials

For a century, what Wilde actually said at his trials was a mystery. But the recent discovery of shorthand notes changed that. Now his grandson Merlin Holland has turned them into a play
Can scientists save the world's sea life from

Can scientists save our sea life?

By the end of the century, the only living things left in our oceans could be plankton and jellyfish. Alex Renton meets the scientists who are trying to turn the tide
Richard III, Trafalgar Studios, review: Martin Freeman gives highly intelligent performance

Richard III review

Martin Freeman’s psychotic monarch is big on mockery but wanting in malice