Gunilds Front Page

Sharks: Loss of Diversity Through Time

Posted by Ila France Porcher

27 June, 2024 - 11:42

Ecology & Science
Diagnosing the "bends" in turtles caught in fishing nets

Posted by Catherine GS Lim

24 June, 2024 - 13:06

Ecology & Science
Why have Pacific Coast gray whales become shorter?

Posted by Catherine GS Lim

19 June, 2024 - 06:10

Ecology & Science
Wreck of Sir Ernest Shackleton’s last ship, found in Labrador Sea

Posted by Chief minion

12 June, 2024 - 20:19

Wrecks & Archaeology
Boracay to Open New Hyperbaric Facility

Posted by Chief minion

12 June, 2024 - 17:08

Travel & Trips
Surprising Sexual Encounter Seen in Humpback Whales

Posted by Ila France Porcher

10 June, 2024 - 12:35

Ecology & Science

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Press Releases

MIDE 2024 Captivates Enthusiasts and Industry Leaders

24 Jun, 2024

DAN Reminds Dive Pros to Avoid a Gap in Their Liability Coverage

19 Jun, 2024

Ocean Tribute Award 2025 call for entries

14 Jun, 2024

Lake Ontario becomes a national marine sanctuary

07 Jun, 2024

Oceanic+ Dive Housing Awarded the 2024 Red Dot Product Design Award

07 Jun, 2024

A mandarinfish amongst coral reef

Yap Hosting the Pacific’s Premier Dive Photography Events

31 May, 2024

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Upcoming Events & Expos

18 Oct, 2024 ➢ 20 Oct, 2024

Diving Talks

Lisbon, Portugal

25 Oct, 2024 ➢ 27 Oct, 2024

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18 Jan, 2025 ➢ 26 Jan, 2025

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Wrecks & Archaeology

Sonar Image of Quest

Wreck of Sir Ernest Shackleton’s last ship, found in Labrador Sea

Jun 12, 2024 - 20:19 Tall & Wooden Ships

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Technical Diving - News

SDI introduces new scuba instructor certification

16 Jan, 2024 Courses

Technical Diving Features

US Coast Guard Report: Rob Stewart

29 Apr, 2024

Technical Diving - features from the archives

Voronya Cave: Diving Deeper into the Deepest Cave on Earth

03 Jan, 2017 Cave Diving and Mines

Is There Still a Case for Open Circuit in Tech?

14 Dec, 2015 Technical Diving

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Safety Culture

Gareth Lock

Human Factors in Diving Conference Coming up

14 Jul, 2021 Safety Culture

Divers Adrift - Surviving Being Lost at Sea

09 Jan, 2021 Safety Culture

Gas Management 101

09 Jan, 2021 Safety Culture

Avoiding Bad Gas - Tips for Preventing Breathing-Gas Contamination

05 Jan, 2021 Safety Culture

Defensive Diving, Part 2

31 Oct, 2020 Safety Culture

Defensive Diving, Part 1

19 Jun, 2020 Safety Culture

Simon Pridmore

Tech diver on wreck

Turning Tek

19 Jan, 2023

Mark Powell

Technical Diving Equipment

13 Oct, 2011 Technical Diving

Matt Jevon

The Role of Ego in Technical (and Recreational) Diving

27 Feb, 2017 Matt Jevon Safety Culture

Training

Scuba diver

All the Trimmings: Tips to Improve Your Efficiency in Water with Good Trim

10 Oct, 2022 Training

NASA Johnson / Flickr / CC BY-NC 2.0

Do What You Teach and Teach What You Do

01 Sep, 2022 Training

Photo courtesy of Michael Mason

Be a Better Divemaster: Apply Human Factors

05 Jan, 2022 Training

Travel

Promotions and offers from our sponsors

A mandarinfish amongst coral reef

Yap Hosting the Pacific’s Premier Dive Photography Events

31 May, 2024

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Master Liveaboards Announces Summer Sizzler Sale

29 May, 2024

Shark Angels Announces Online SCUBA Auction

22 May, 2024

Explorer Ventures

Explorer Ventures – Retro 1987 Birthday Celebration Sale

08 May, 2024

Latest Travel Features

Dhofar: Diving Oman’s Monsoon Sea

Paul Flandinette

23 Apr, 2024

Travel & Trips
Vanuatu: Pacific Island Adventure

Pierre Constant

16 Mar, 2024

Travel & Trips

Pacific

South Pacific & Oceania

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Southern Right Whales of Peninsula Valdés

Don Silcock

19 Jan, 2024

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16 Jan, 2024

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Michael Salvarezza and Christopher P. Weaver

24 Dec, 2023

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Red Sea Safari: Wrecks, Sharks & Luxury

Brandi Mueller

19 Dec, 2023

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Dive Travel News

Airlines start dropping pandemic-specific rules

03 Apr, 2021 Travel & Trips COVID-19

Egyptian Dive Operators Affected by Regional Unrest

28 Mar, 2024 Travel & Trips

Travel News & Advisories

Boracay to Open New Hyperbaric Facility

12 Jun, 2024 Travel & Trips

Oban Hyperbaric Chamber Loses Funding

28 Mar, 2024 Travel & Trips

Pacific Northwest: A Rhapsody in Red

By Chief minion

13 October, 2011 - 23:32

Posted in: Travel & Trips
Himalayan Heaven

By Andrey Bizyukin

13 September, 2004 - 23:32

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Catacombs of Paris

By Chief minion

13 October, 2011 - 23:32

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Norway: Saltstraumen

By Chief minion

13 October, 2011 - 23:18

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Patagonia

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13 October, 2011 - 23:34

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The Philippines: Southern Cebu

By Andrey Bizyukin

10 January, 2015 - 12:14

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News from Divers Alert Network (DAN)

DAN Reminds Dive Pros to Avoid a Gap in Their Liability Coverage

Jun 19, 2024

DAN at 2024 Scuba Show

May 24, 2024

DAN Introduces Continuing Education for Dive Professionals

May 22, 2024

DAN celebrates 15 years of dive safety seminars in Cozumel

Dec 20, 2023

DAN receives NAUI Innovation Award

Dec 14, 2023

Party with DAN at DEMA Show 2023

Nov 03, 2023

DAN announces DEMA party, seminar schedule and more

Oct 27, 2023

Ecology

Stuff

Sharks: Loss of Diversity Through Time

By Ila France Porcher

June 27, 2024 - 11:42

Posted in: Ecology & Science
Diagnosing the "bends" in turtles caught in fishing nets

By Catherine GS Lim

June 24, 2024 - 13:06

Posted in: Ecology & Science
Why have Pacific Coast gray whales become shorter?

By Catherine GS Lim

June 19, 2024 - 06:10

Posted in: Ecology & Science
Surprising Sexual Encounter Seen in Humpback Whales

By Ila France Porcher

June 10, 2024 - 12:35

Posted in: Ecology & Science
Cookiecutter Shark Bites: Moonless Nights are Risky

By Ila France Porcher

June 04, 2024 - 13:58

Posted in: Ecology & Science
Have cownose rays sniffed out a new home in Bermuda?

By Catherine GS Lim

June 01, 2024 - 21:02

Posted in: Ecology & Science

Sentience

Can clownfish count?

social sharks

Sharks as social and sentient beings

Fish recognises itself in photographs

Giant Pacific Octopus - photo by Andrey Bizyukin

Do octopuses have an emotional life?

Squirrelfish

Seeking Eye Contact: Fish Gaze Reveals Self-Awareness

Illustration of a tiger shark by Ila France Porcher

What Are Sharks Aware Of?

Do fish really possess higher cognitive powers?

Thoughtful Sharks

The Remarkable Intelligence of Fish

Marine Mammals

Why have Pacific Coast gray whales become shorter?

Jun 19, 2024 - 06:10 Whales

Surprising Sexual Encounter Seen in Humpback Whales

Jun 10, 2024 Whales

Groundbreaking research suggests sperm whale clicks may represent a complex language system

Deciphering the Language of Whales

May 08, 2024 Whales

Antarctic Wildlife Threatened by Lingering…

May 05, 2024 Seals & Sea lions , Walrusses

Sharks & Rays

Lemon shark teeth

Sharks: Loss of Diversity Through Time

Jun 27, 2024 - 11:42 Sharks

Cookiecutter Shark Bites: Moonless Nights are Risky

Jun 04, 2024 Sharks

Have cownose rays sniffed out a new home in Bermuda?

Jun 01, 2024 Mantas & Stingrays

Proven: Marine Protected Areas Boost Shark Populations

May 25, 2024 Sharks

Photo & Video

Rico Besserdich - tutorials

Surgeonfish, Red Sea, photo by Rico Besserdich

A New Approach: Shooting Common Subjects in Different Ways

Sep 28, 2021

Underwater Photography on a $500 Budget

Jul 21, 2021

Prepping for Print

Apr 02, 2021

Sharpening Underwater Images in Postproduction

Nov 23, 2020

Photo by Rico Besserdich

Vivid Color with Lab in Postproduction of Underwater Images

Oct 31, 2020

Photo & Video

Transparent & Translucent: Contributors’ Picks

Still photography

Pure Light: Shooting with Ambient Light in UW Photography

Still photography

Tones & Tonality: Contributors' Picks

Still photography

Getting into Blackwater

Underwater Photographer of the Year 2024 Winners

DM i Undervandsfoto 2024 – En vellykket gentænkt konkurrence

By My Minion

juni 14, 2024 - 18:52

Posted in: Foto & Video
Transparent & Translucent: Contributors’ Picks

By My Minion

May 25, 2024 - 15:06

Posted in: Photo & Video
Nitecore Rechargeable 18650 Li-ion Battery (4000mAh)

By My Minion

May 18, 2024 - 11:04

Posted in: Photo & Video
AOI Wet Lens Holder

By Chief minion

May 10, 2024 - 12:00

Posted in: Photo & Video
Weefine Smart Focus 2500 light

By Chief minion

May 09, 2024 - 17:18

Posted in: Photo & Video
Marelux Lumilink

By Chief minion

May 09, 2024 - 17:04

Posted in: Photo & Video

Culture & Lifestyle

Grace Marquez Portfolio

By My Minion

07 August, 2023

Posted in: Portfolios
,
Posted in: Ocean Arts
Paul Fearn Portfolio

By My Minion

27 April, 2023

Posted in: Portfolios
,
Posted in: Ocean Arts
Portfolio: Alan Williams

By My Minion

14 October, 2023

Posted in: Portfolios
,
Posted in: Ocean Arts
Nate Wilson Portfolio

By My Minion

19 January, 2023

Posted in: Portfolios
,
Posted in: Ocean Arts
Tony Fredriksson Portfolio

By My Minion

06 February, 2023

Posted in: Portfolios
,
Posted in: Ocean Arts
Marguerita Hagan Portfolio

By My Minion

10 October, 2023

Posted in: Portfolios
,
Posted in: Ocean Arts
Olivier Leger Portfolio

By My Minion

20 June, 2023

Posted in: Portfolios
,
Posted in: Ocean Arts
Setsuo Hamanaka Portfolio

By My Minion

01 August, 2022

Posted in: Portfolios
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Posted in: Ocean Arts

Gift ideas

Books by our contributors

Dangerous Shallows

Eric Takakjian and Randall Peffer

Shipwrecks of the Dover Straits

Stefan Panis

Expanded Edition of The Manual of Freediving Now Available

Umberto Pelizzari and Stefano Tovaglieri

Oxygen Measurement For Divers

John Lamb

The True Nature of Sharks

Ila France Porcher

Technically Speaking – Talks on Technical Diving Volume 1: Genesis and Exodus

Simon Pridmore

Wrecks4all

Underwater Guide to the Red Sea, 2nd edition

Lawson Wood

Books by Rico Besserdich

SONG OF SILENCE – A Book About Water

Recommended reads

My Sunset Rendezvous: Crisis in Tahiti

Ila France Porcher