The sea is a fascinating place. It covers 70% of our planet yet it’s one of the places we know the least about. Sometimes I even get the feeling that we know more about the moon than we do about the sea!
The most we know about is the ocean surface — that is the upper 200 meters from the surface.
The ocean surface is the smallest portion of the ocean but it;s home to most species we know. Probably because it’s the only place where there’s photosynthesis and also because it’s easier for us to look for marine life there.
As you go down deeper, you enter the Twilight Zone. That’s somewhere between 200m and 1000m down — and that is where the light becomes really dim and dark…
Over there, most animals start looking transparent, having no color, because there simply isn’t anywhere to hide…
And then as you continue deeper and deeper you can get into the Deep Ocean.
I remember once seeing a really cool documentary by IMAX on extremophiles : how they went into caves to collect little specimens in the most remote areas where they’d think life would be impossible. We learn so much by looking at where limits lie!
