To save some people a click, growth hormone apparently used to be extracted from the brains of human cadavers in the UK and some children treated with this later developed Alzheimer’s, some of them as early as their 30’s.
Worth reading the whole article, very interesting!
Oh wow, good eye! I managed to take a better photo of one the other day, looks a lot like that picture!
Saying that, here’s a picture of an endler guppy fry off Google:
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Bloody things look the same! Haha