Did you mean: Do Whales Breathe Using Gills or Lungs?
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Aquatic respiration

en.wikipedia.org/wiki/Aquatic_respiration

Aquatic respiration is the process whereby an aquatic animal obtains oxygen from water. ... Fish use the process known as countercurrent flow, in which water and blood ... The respiratory system of ...

How Do Whales Breathe? | National Marine Life Center

nmlc.org/2009/04/how-do-whales-breathe/

Apr 19, 2009 ... Fish use their gills to take oxygen from the water that they live in. But people get the ... Whales and dolphins use their lungs to breathe air also.

Do Whales Have Gills? - Whale Facts

www.whalefacts.org/do-whales-have-gills/

No, whales don't have gills; instead they are born with blowholes. ... to extract oxygen directly from the water so that they can breathe underneath the water ... Whales are marine mammals and like all mammals they have lungs and nostrils,  ...

Short Sharp Science: Why whales don't have gills - New Scientist

www.newscientist.com/blogs/shortsharpscience/2009/08/why-whales-dont-have-gills.html

Aug 5, 2009 ... (By the way, this is why we couldn't breathe liquid unaided, as in the film The ... Well, their gills are much more efficient at extracting oxygen than our lungs. ... With an unlimited, easy supply of oxygen, whales and dolphins can ...

Suzy's World: Whales

www.suzy.co.nz/suzysworld/Factpage.asp?FactSheet=240

A whale can hold it's breath for up to half an hour under water and that's because its ... to ours, but when it breathes in fresh air most of its lungs are filled with air.

How do dolphins breathe? - WDC - Whale and Dolphin Conservation

us.whales.org/faqs/facts-about-whales-and-dolphins/how-do-dolphins-breathe

Like other mammals, dolphins have lungs and breathe air. They breathe using a blowhole on top of their head and will normally do this several times a minute.

Why Do Whales And Dolphins Have Lungs And Not Gills? - Best all ...

evolutionfairytale.com/forum/index.php?/topic/2975-why-do-whales-and-dolphins-have-lungs-and-not-gills/

Dec 19, 2009 ... Fish use gills to breathe. This means they can't drown, and don't need to surface to breathe.Aquatic mammals like whales have lungs. Not good ...

How Do Fish Breathe Underwater? | Wonderopolis

wonderopolis.org/wonder/how-do-fish-breathe-underwater/

The air-breathing lungs of mammals, including humans, must be dry and empty of ... As water passes over the thin walls of the gills, dissolved oxygen moves into the ... If fish can breathe underwater, then why do some fish, like dolphins and whales, swim to ... When a whale or dolphin surfaces, it breathes air through its nose ...

evolution - Why have whales and dolphins not evolved to have gills ...

biology.stackexchange.com/questions/29846/why-have-whales-and-dolphins-not-evolved-to-have-gills

Feb 23, 2015 ... ... to do so? If there is some advantage to breathing from the air instead of using gills, why haven't animals such as sharks (or indeed fish in general) evolved to do this instead? ... There are advantages to lungs in whales.

Why didn't mammals evolve with lungs and gills? | Reference.com

www.reference.com/pets-animals/didn-t-mammals-evolve-lungs-gills-6b11d3401401168d

Gills can only introduce a small amount of oxygen per liter of water, while lungs can ... so organisms with lungs only need to process about 4 grams of air per breath. ... Whales and dolphins are mammals that live in water, and they have lungs ...

More Info

How Do Whales Breathe? - Whale Facts

www.whalefacts.org

Unlike fish these marine mammals are not equipped with gills, which fish ... To assist with long dives whales have developed special lungs that help them inhale  ...

How do whales breathe? - Quora

www.quora.com

Shorter answer: Whales have lungs and the blow hole on top allows air in, and out, like a nostril ... Fish use their gills to take oxygen from the water that they live in. But people get the ... Whales and dolphins use their lungs to breathe air also.

How come whales can hold their breath longer than most mammals?

scienceline.ucsb.edu

So they evolved in a way that let them live in the ocean, with wide tail flukes, ... A whale's lungs work like ours do, but they make the most of each breath. In one ...