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Faroes dolphin hunt review – disappointing is an understatement

I wasn't alone in hoping that substantial changes would be made as a result of...
Minke whale - V Mignon

We told them this would happen! Time to halt cruel whale experiments

An ill-conceived and so far ill-fated joint US/ Norwegian experiment to test minke whales' reaction...
Sponging dolphin in Shark Bay

Dolphins who catch fish with shells

Kidzone - quick links Fun Facts Our Goals Curious kids Kids blogs Fantastic fundraisers Gallery...
WDC team at UN Ocean conference

Give the ocean a chance – our message from the UN Ocean Conference

I'm looking out over the River Tejo in Lisbon, Portugal, reflecting on the astounding resilience...
We need whale poo 📷 WDC NA

Whales are our climate allies – meet the scientists busy proving it

At Whale and Dolphin Conservation, we're working hard to bring whales and the ocean into...
Humpback whale underwater

Climate giants – how whales can help save the world

We know that whales, dolphins and porpoises are amazing beings with complex social and family...
Black Sea common dolphins © Elena Gladilina

The dolphin and porpoise casualties of the war in Ukraine

Rare, threatened subspecies of dolphins and porpoises live in the Black Sea along Ukraine's coast....
WDC's Ed Fox, Chris Butler-Stroud and Carla Boreham take a message from the ocean to parliament

Taking a message from the ocean to parliament

It's a sad fact that whales and dolphins don't vote in human elections, but I...

And the award for deep-diving champion goes to?

Not the sperm whale as some might have thought, but in fact the lesser known Cuvier’s beaked whale!! 

Researchers from Cascadia Research Collective recorded an individual Cuvier’s beaked whale diving to a depth of almost 3km and staying there for 137 minutes, beating the former record holder – the southern elephant seal – by some margin. So how can they dive to such depths? One of the reasons is that there is a dramatic reduction in air spaces in their bodies, air spaces that would crush a human at a fraction of the depth these whales can dive to.

They found that the whales preferred diving behaviour is for a single deep foraging dive followed by a series of shallow dives, whilst the time spent at the surface in between each dive can be very short – just a few minutes.

Another interesting result from the study was “where” the whales were located – within the Southern California Anti-Submarine Warfare Range, one of the most heavily used sonar training areas in the world. The implications of this are unknown, have they become habituated to sonar? Do they only use it at times of no sonar activity? Is their behaviour affected by sonar – as in are they diving deeper than normal, or perhaps shallower than normal? It is unlikely that they are not affected at all and therefore more research is needed to try and unravel the mystery of these new record holders.

Find out more amazing facts about whales and dolphins.

About Nicola Hodgins

Policy Manager at WDC