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Acute vitamin A toxicity occurs at about 300,000 IU ingestion. A polar bear liver contains an impressive 9 million IU vitamin A.

This means if you eat a polar bear's liver two things happen:

1. You die
2. The polar bear will be FURIOUS.

sciencedirect.com/topics/immun.

It is possible that the toxicity of polar bear liver might also be due to high concentrations of cadmium.

Either way, it does not go well with onions, and is best left inside the polar bear.

@freemo hey if I wanted to set up a site for gamers, what would I have to do

Today I needed to proofread chapters for a book I am co-editing. Instead I have spent the last 10 hours playing Doom.

In celebration of #Caturday here’s our Kitty staring pensively into the middle distance

@shanaqui
There's another talk - I barely remember it - but IIRC it was interesting. Apparently mast cells can also release extracellular traps.

Presented by Imre Varju, MD, PhD
"Immune-derived extracellular traps in COVID-19 and other infections" Sept 2020
youtu.be/avFT3ypEBas

#immunology #COVID19 #neutrophils #MastCells #mitochondria #NETosis #ExtracellularTraps #thrombosis #clotting #fibrin
#myeloperoxidase
#histones

So, it's been 3 weeks for me in the #fediverse. I like the engagement and while I of follow a couple of "bigshots" (let's just face it, @georgetakei is just delightful), the most meaningful interactions happen with more or less random people I found on the local and federated timeline. There are just so many funny, obscure, geeky, artsy, and nerdy topics out there to talk about.

I'm definitely #HereToStay and will explore other parts of the fediverse, like #WriteFreely and #PeerTube

I love watching Alveolar epithelial type 2 cells move. Here’s another beautiful clip from @mauchioccioli@twitter.com I feel I can spend all #BlackFriday watching. Enjoy. 😍🫁#FluorescenceFriday #AT2Move
#scienceIsBeautiful

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RT @geococcyxcal@twitter.com

This came up in my timeline today from seven years ago. The snowy egrets were chasing the mergansers and cormorants who were herding fish. It was great to see!

🐦🔗: twitter.com/geococcyxcal/statu

This is Invader Zim. He is an Alien Betta and kind of a Jerk. He experimented with veganism when I got him and destroyed my pearl weed. #Fish#betta

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