The closest humans come to being a fish': how scuba is pushing new limits, Oceans

Scientists have begun to explore the ocean’s ‘middle light’ – the mesophotic zone, a lesser-known part of our seas – with new rebreathers

The closest humans come to being a fish': how scuba is pushing new limits, Oceans

The closest humans come to being a fish': how scuba is pushing new limits, Oceans

Protecting the ocean: 5 essential reads on invasive species, overfishing and other threats to sea life - International Science Council

The closest humans come to being a fish': how scuba is pushing new limits, Oceans

Cave Diving: Important Things You Should Know - SCUBAPRO

The Limits of Ocean Heavyweights: Prey Curb Whales' Gigantic Size

Pros And Cons Of A Rebreather

New study sheds light on why some animals dive to the dark, deep sea

Blue Whale NOAA Fisheries

It is About the Fish…Really. - The Ocean Foundation

National Institute of Environmental Health Sciences: Oceans and Human Health

Scuba diving - Wikipedia