Recent comments in /f/todayilearned

suvlub t1_je046ze wrote

When an arm gets severed (which the octopus can regrow), it hangs around for a bit, doing stuff, trying to feed a non-existent mouth. Kinda sad tbh.

Also, male octopuses have a special arm they use for mating. In some species, do avoid sexual cannibalism, they have developed a strategy of ripping it off, upon which it swims on its own towards the female to impregnate her. We live in a world where there are sentient penises swimming around and seeking to mate.

7

DumbbellDiva92 t1_je03wlc wrote

They test our hemoglobin before as well but that’s different from ferritin. Think you need more blood for that (can’t just use a finger prick), but you can sometimes have iron deficiency that doesn’t show up by that (but would show up as low ferritin).

2

WrenchesRUs t1_je03u1x wrote

Shit we made near the same comment. I just added that they won't take cans if they're crushed either.

We save ours up and return them all at once. I had my poor Toyota Tercel stacked the ceiling everywhere but the drivers seat, and the floors and trunk full of bags too, made like 50 bucks lol

1

musicmad-123 t1_je03hsi wrote

In the UK they test our iron right before the donation every single time. I think they did trial having women be able to donate more frequently but they concluded it was safer to keep it as is.

2

machina99 t1_je029j5 wrote

171

Fast_Moon t1_je01vvl wrote

Japan has something similar. The god of education, Tenjin, was originally a poet named Sugawara no Michizane who lived 1000 years ago. During a regime change, he got ousted and exiled and died in shame. After his death, a bunch of calamities befell the government, leading people to believe that Michizane's vengeful spirit was cursing them, so they started worshipping him as a god to placate him.

https://en.m.wikipedia.org/wiki/Tenjin_(kami)

571