The Mariana Trench

Daruk

Honorary Master
Joined
Jul 18, 2008
Messages
43,495
Please extend the graphic to include the rest of the known universe (for scale).
 

Fulcrum29

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Jun 25, 2010
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32,126
This is quite interesting. I’ve only viewed it on a mobile device.


That site made me dig into Sea Lions.

How long can a sea lion hold its breath?

Sea lions can remain underwater for an average of 8 to 20 minutes. Unlike dolphins, sea lions exhale before diving. Naturally, their nostrils are closed, but they have special muscles to open them in order to breathe. Sea lions can dive to depths between 450 and 900 feet (135 - 272 m). The reason they can dive so deeply and stay underwater so long is because they have a high tolerance for carbon dioxide. The oxygen in their body concentrates in their heart and central nervous system rather than in non-vital organs. Their relative, the elephant seal, can hold its breath for 62 minutes and dive to depths of 4,100 feet (1240 m).
Then I read that the Elephant Seal can dive to 1240m, considering that the Elephant Seal can weigh up to 4000kg.
 

Asgard85

Well-Known Member
Joined
Mar 31, 2016
Messages
418
That site made me dig into Sea Lions.



Then I read that the Elephant Seal can dive to 1240m, considering that the Elephant Seal can weigh up to 4000kg.
Nature really is quite incredible. There is so much wonder to be appreciated.
 

Itsa Trap

Well-Known Member
Joined
Jan 22, 2020
Messages
113
Some very angry looking fish down there.
Or maybe their skulls are just been squashed by been so deep down that they have a constant headache 24/7.

I don't think I wanna go there for Fish & Chips















All I am getting from this is that there is a massive market for cosmetic dentistry.
 
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