Blue Planet III Proves David Attenborough Still Has Wonders to Share

Blue Planet III has arrived on BBC One, and if you've been quietly bracing yourself for disappointment, you can exhale now. According to The Guardian Culture, the latest chapter in David Attenborough's iconic ocean franchise is, quite simply, a corker — funny, gripping, and emotionally forceful in equal measure.

Setting Expectations at the Right Level

It's hard to walk into any new Attenborough series without the weight of legacy pressing down on it. The original Blue Planet reshaped nature documentary television back in 2001, and Blue Planet II famously shifted public conversation around ocean plastic pollution when it landed in 2017. This third instalment isn't trying to replicate either of those cultural moments — and honestly, that might be exactly why it works. Strip away the pressure of being a landmark, and what you're left with is simply a brilliant wildlife series doing what it does best. Fans of David Attenborough's Emmy-Nominated Voyage into Ocean Mysteries will find themselves right at home here.

The Discoveries That'll Make Your Jaw Drop

Episode one doesn't waste any time getting to the good stuff. The Blue Planet team head to Shark Bay in Western Australia, where they finally crack open a long-standing mystery: why dolphins have been spotted carrying sea sponges in their mouths. The behind-the-scenes featurette tacked onto the end of the episode is well worth sticking around for, revealing just how technically demanding — and genuinely dangerous — that shoot was, with cameraman Alex reportedly at real risk from a tiger shark while getting the shot.

Over in northern Australia, a pack of tawny sharks pulls off what can only be described as a coordinated con: playing dead to avoid spooking a school of herring, then working together to herd their prey toward the shore for a group feast. It's the kind of behaviour that makes you rethink everything you assumed about these animals.

For the obligatory edge-of-your-seat chase sequence, the show heads to Brazil, where a sea turtle navigating deeper waters has to surface for air — and in doing so, tips off a lurking shark. With a drone overhead and a camera mounted on the turtle's shell, viewers get a full tactical breakdown of the escape, including a last-second sharp turn that sends the shark's teeth skidding off hard shell. Breathless stuff.

Comic Relief, Served Cold (and Salty)

Not everything here is life-or-death drama. Blue Planet III has a delightful streak of absurdist humour running through it. A pair of harlequin shrimp in Indonesia — decked out in their frankly ridiculous two-tone colouring — bumble around trying to eat a starfish, and the result is genuinely laugh-out-loud funny (less so for the starfish, which loses an arm in the process).

Then there's the fiddler crab segment in the Brazilian mangroves, which plays out like a nature documentary crossed with a dating show. One hopeful male waves his oversized claw at passing females, only for the camera to pull back and reveal he's surrounded by literally hundreds of rivals doing the same thing. His story does not end well. Attenborough's narration carries a wonderfully dry wit through all of it — the playfulness in his delivery is unmistakable, even as his voice has softened to something close to a whisper with age.

When It Gets Serious, It Really Lands

The tonal shift into climate territory hits hard. A clownfish tending its anemone becomes the entry point for a devastating before-and-after comparison of a coral reef — lush and colourful in one shot, bleached and blackened just months later. It's the kind of image that stays with you. Attenborough's closing message, about the tiny fish that fought to protect its home and what we humans might manage if we tried to do the same, lands with quiet, unforgettable force. It's a plea he's made before, but it never loses its power.

Blue Planet III is currently streaming on BBC iPlayer in the UK, with an Australian airdate still to be confirmed.

Related on Ni4o: David Attenborough's Emmy-Nominated Voyage into Ocean Mysteries · Octavia Spencer Triumphs Over David Attenborough at Emmy Awards