- What did the wooly mammoth eat? How could such a massive creature survive in a climate that likely had very little vegetation?
1,598 points134 comments5 d ago
- Do birds experience jet lag when they migrate?
441 points106 comments5 d ago
- Are amputees' medications dosed differently?
i get that doses are partly based on weight, but was wondering if the distribution of weight/ lack of vasculature in missing limb affects the recommended dose
429 points37 comments5 d ago
- Are the platypus and echidna actually closely related? Or are they simply grouped together for being the only remaining mammals to keep the egg laying traits?
Basically I'm asking, which one is true out of these 2 scenarios?: 1. There was a ton of diversity in the egg laying mammals, just as much diversity as the live young birthing mammals of today,...
375 points72 comments6 d ago
- After being cut, do finger prints come back the same?
Yesterday, I cut my finger with my razor and I had to get stitches due to it gushing blood for over 2 hours (I’m not too sure how deep it was). Will I have a scar? Will my finger print be...
262 points75 comments5 d ago
- Are there animals that can absorb water very quickly?
I'm a member of the hydrohomie sub, and obviously hydration is a frequent topic, and a frequently misunderstood topic: water alone is insufficient, also, you can't drink too much, too fast. That...
236 points46 comments5 d ago
- AskScience AMA Series: I'm Mark Z. Jacobson, Professor of Civil and Environmental Engineering at Stanford and Director of the Atmosphere/Energy Program. I study what it would actually take to run the world on wind, water, and solar. AMA!
Hi r/AskScience! I’m Mark Jacobson, Professor of Civil and Environmental Engineering at Stanford and Director of the Atmosphere/Energy Program. I did an AMA here in 2021 and I’m glad to be back....
210 points99 comments4 d ago
- Why do we have hair?
129 points62 comments6 d ago
- How long do species tend to stay species?
in the fossil record, for instance, we will find a species of dinosaur. How long is that dinosaur “that dinosaur” versus another slightly changed descendant of that species or the ancestor that...
81 points17 comments6 d ago
- Do plant roots release water back to the soil?
We think of roots absorbing water, but does it ever work the other way?
69 points9 comments5 d ago