In the upper three feet of surface, you can find regions of water abundance that you can see in no other way, because the surface is covered in soil. And that is totally unexpected.
" And there are a lot of debates about how the two periods related to each other, but we lacked the evidence in the area I'm most interested in, which is the Mekong Valley."
We're carbon-based lifeforms because there's a lot of carbon on Earth, but perhaps on another planet, something like silicon is the most abundant element, and therefore life could evolve from that.
There's a lot of evidence of anoxic water, water that doesn't have enough oxygen in it because it produces these black shale deposits in the Devonian, and so we have that mass extinction.
A long time ago, moose used to live in many parts of Europe and the United States where they cannot now be found, but in colder, less populated areas moose are still thriving.
" There was a lot of debate as to what the oxygen content was 800 million or more years ago, " said Nigel Blamey of Brock University's Department of Earth Sciences.