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Doug Main Profile picture
Doug Main
@Douglas_Main
writer, journalist, explorer, naturalist & artist. diverse interests, always learning. senior writer/editor @natgeo covering wildlife, nature, the environment
Aug 21, 2024 • 8 tweets • 3 min read
My first story for @guardian / @thenewledenews:

Microplastics are turning up in more & more human organs — including the brain.

(Thread...)

theguardian.com/environment/ar… In recent months, micro- & nanoplastics have been reported in lungs, placentas, testes, sperm, penises, livers, kidneys, joints, bone marrow.

One shocking pre-print paper found microplastics made up 0.5% of the 24 brain samples collected this year.

ncbi.nlm.nih.gov/pmc/articles/P…
Nov 27, 2020 • 14 tweets • 6 min read
Hedge apples are fascinating. They’re too large/unpalatable to be eaten by humans or almost any (living) animal. The species is an evolutionary anachronism—a “ghost” of evolution—that co-evolved to be spread by huge extinct animals like mammoths or giant sloths (Thread to come) Image Hedge apples were likely dispersed by giant extinct fauna: mammoths, mastodons, and possibly ground-sloths. Today no species besides humans efficiently spreads their seeds. Their range pre-European settlement was mostly restricted to TX and OK.
sciencedirect.com/science/articl…
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