AH, The Great Variety of Life on Earth!

The more we search, the more we learn that we do not know half as much as we think we do. Marin Biologists have now discovered life 7 miles below the ocean. At this depth, the atmospheric pressure what it is at sea level.
New organisms found in deepest seas
We keep stating as fact that life can not survive in most extreme environments. Boy were we wrong!
Leads me to wonder just what else is here on Earth that we have not discovered or presently believe could not exist.
Think about it, a few months ago, there was a news article of a microbe that lives atn extreme depths under the ground and may actually be respponsible for the caverns. Unlike what we believed before that underground caves were fro, such things as water erosion or flowing lava etc.
Also makes you wonder what we maybe missing wjen we visit other worlds / moons.

The more extreme the circumstance the more delicate and tiny the lifeforms are.

Also the more simple they are. This type of life does not interest me as it serves no purpose other than the fact that it "can" exist.

I wish we could find life as substantial as we are, that to me would be truly extreme...