From one to four to none at all, stomachs enjoy a stunning variety across all the creatures who have (or don't have) them. And with our stomachs all happily full of spooky month treats, we thought it was the perfect time to learn all about this weird, wobbly, wonderful organ.
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[This, That, or the Other: Stomachs ROCK]
Bird with over 1% of their total body weight of gastroliths
Aquatic animal helps control buoyancy by swallowing silt
Animal eats its exoskeleton that stores calcium in stomach
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8342792/#bib0037
https://bonndoc.ulb.uni-bonn.de/xmlui/handle/20.500.11811/2110
https://www.jstor.org/stable/4098635
https://pubmed.ncbi.nlm.nih.gov/26818557/
[Trivia Question]
Mammal species without stomachs
https://www.livescience.com/41661-why-platypus-wont-regain-stomach.html
https://royalsocietypublishing.org/doi/10.1098/rspb.2013.2669
https://www.ucl.ac.uk/museums-static/obl4he/vertebratediversity/monotremes.html
https://m.youtube.com/watch?v=A5Rzx7yeh7c
[Fact Off]
Ghost crabs use their stomach teeth (gastric mills) to growl
https://royalsocietypublishing.org/doi/10.1098/rspb.2019.1161
https://www.science.org/content/article/listen-ghost-crab-frighten-away-enemies-its-stomach-rumbles
Someone ate a shrew to study what human digestion does to rodent bones
[Ask the Science Couch]
Borborygmus and the biology of stomach rumbles
https://www.scientificamerican.com/article/why-does-your-stomach-gro/
https://www.etymonline.com/word/borborygmus
https://www.nature.com/articles/nrgastro.2012.57
https://journals.physiology.org/doi/full/10.1152/ajpgi.00212.2015
Patreon bonus: Stomach and brain communication for hunger/satiety (or other things)
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3174087/
https://www.ncbi.nlm.nih.gov/books/NBK555906/
https://journals.physiology.org/doi/full/10.1152/ajpgi.00448.2003
https://www.livescience.com/health/food-diet/does-it-really-take-20-minutes-to-realize-youre-full
https://www.journals.uchicago.edu/doi/full/10.1086/693111
[Butt One More Thing]
Florida carpenter ants swallow their own formic acid to help protect their stomachs