maximum depth for an air-breathing animal

[Oceana Diver]

And the award goes to the Cuvier's beaked whale, at 6000 feet:

http://deepseanews.blogspot.com/2006/11/deepest-dive-ever-reported-for-air.html

 

[suthnbelle]

Interesting article. Thanks for sharing.

 

[DavidPT40]

Interesting. According to "Mysteries of the Sea", Sperm Whales are capable of diving to at least 9,000 feet. Most of the evidence was anecdotal though, such as capturing Sperm Whales with bottom-dwelling sharks in their stomachs when the depth of water in any direction for miles was 9000-10000 feet deep.

 

[Thalassamania]

[FONT=Times New Roman, Times, serif]Submarine sonar readings have documented sperm whales at 2500 meters (8200 feet).[/FONT]

 

[drbill]

Likewise I've heard sperm whales do it deeper!