biology
Asteroid Hosts All Ingredients for DNA and RNA - Eos
https://eos.org/articles/asteroid-hosts-all-ingredients-for-dna-and-rna
Samples collected from asteroid Ryugu contain the four genetic “letters” of DNA, reinforcing the hypothesis that the chemical origins of life were present when…
Added 2 weeks ago
Katherine Rundell · Consider the Greenland Shark
https://www.lrb.co.uk/the-paper/v42/n09/katherine-rundell/consider-the-greenland-shark
I am glad not to be a Greenland shark; I don’t have enough thoughts to fill five hundred years. But I find the very...
Added 3 weeks ago
Why are there no fish in the deepest deep sea? | Deep Sea News
https://deepseanews.com/2015/08/why-are-there-no-fish-in-the-deepest-deep-sea/
Here’s a mystery: below 8,400 meters there are no fish. There are other creatures: sea cucumbers, anemones, tiny worms, but no one has ever seen a fish. At 8,370 meters? There are fish. But not below 8,400 meters. At its deepest the ocean reaches roughly 11,000 meters, so there is plenty of space. And right below 8,400
Added 1 month ago
Men lose their Y chromosome as they age. Scientists thought it didn’t matter – but now we’re learning more
https://theconversation.com/men-lose-their-y-chromosome-as-they-age-scientists-thought-it-didnt-matter-but-now-were-learning-more-275823
The Y chromosome doesn’t seem to do much except determine sex – but its loss in older men might be linked to heart disease, cancer and Alzheimer’s.
Added 2 months ago