What would life be like on a planet with high atmospheric pressure?

I'm effectively looking to change the 'Could' in this question to a 'what' or 'How'.

Could higher land-based life exist on a planet with a pressure of about 1 MPa?

I'm working on a story in which humans visit a planet with intelligent life present. This will be an ammonia world, with a comparable gravity to earths, but a larger atmosphere: say, 10 atmospheric pressures.

The humans will/can be wearing whatever is necessary to keep them alive (breathing apparatus etc).

I'm wondering what the effects will be of this atmosphere?

1) I read about heat transfer- is this going to a huge problem for any life or humans on this planet? I understand that the heat would be sucked out of the animals very quickly, maybe prohibitvely quickly.

2)what would it feel like for a human? like being underwater? and could humans potentially fly at this pressure (easily, with the aid of some mechanical costume?)

Also other considerations, like how sound and light propogate? Sound will be a lot quicker, and I assume that the light level at the surface will be much lower (How much lower?) would sound become a much more important tool than sight for animals evolved on this planet?

posted about 7 years ago

princeprince‭

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