Hank Green & team enrich your world with science every single day! See also: @scishowtangents, @scishowkids, and our SciShow Psych and SciShow Space archives.
Here's some wildness...there are two types of twins...dizygotic (two zygotes, thus fraternal) and monozygotic (one zygote splits, thus identical). Except NOPE! You've been lied to.
Everywhere on earth where there is water, there is life. There are bacteria that thrive in boiling hot water with the pH of battery acid. Water is the stuff of life and life has found a way to live in it...everywhere on Earth. EXCEPT.
There's always an except.
Trichiasis, where eyelashes begin growing toward the eye, can be very difficult to treat without modern medicine and has been the cause of millions of cases of blindness!
Very excited for my doctor’s appt today where a plastic surgeon will tell me whether he can fix the eyelash that just started randomly growing on the inside of my eyelid☺️
...but because we don't the thought is that there is an advantage for a human in having other humans know what they are looking at.
The theory is that we are so weirdly social that there is more benefit in automatically sharing what you're looking at than hiding it.
As we get deeper into efforts to expand testing, the difference between different kinds of tests is going to get more complex. So let's talk about the four main types of COVID-19 tests, and how they each work.
(a long thread)
(THREAD)
How on earth does hydroxychloroquine treat diseases as different as malaria parasites, lupus, and potentially COVID-19? Well, it's actually not /that/ complicated. You just have to understand the chemistry a bit.
We’re excited to announce that we’re updating our look! Starting July 1st, we’ll be sporting a new logo and intro sequence.
But don’t worry, we’re still making the same fun, curiosity-inspiring content you can always count on us for!
SciShow Answer: This is one of the weirdest things about humans that we don't realize is weird. Most animals (including other primates) have dark or hidden scleras because it's better for them to hide what they're looking at....
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