Uploaded March 2025 | Updated September 2026, 6 hours ago
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Plenty of frogs can be poisonous, but Greening’s frog and Bruno’s casque-headed frog use bony spines on their snouts to break the skin of would-be predators and introduce toxins into their attacker’s bloodstream. This makes them the first species of truly venomous frogs that we know of. And they do it via headbutt.
Do you need your own venomous frogs? https://complexly.store/products/bb-march-25-venomous-frog
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This month's pin is designed by Thiago Limón. You can find out more about him and his work here: https://thiagolimon.com.br/trabalhos
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#BizarreBeasts #frogs
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Sources:
amphibiaweb.org/species/685
amphibiaweb.org/species/676
cell.com/current-biology/fulltext/S0960-9822(15)00788-5
newscientist.com/article/dn28013-zoologger-worlds-first-venomous-frog-has-the-kiss-of-death
onlinelibrary.wiley.com/doi/10.1111/cla.12409
iucnredlist.org/species/55303/172201316#habitat-ecology
web.archive.org/web/20160303172623/http://botany.si.edu/projects/cpd/sa/sa19.htm
sciencedirect.com/science/article/pii/S0300962996004811
merriam-webster.com/medical/coossify#:~:text=coossified%3B%20coossifying,noun
zslpublications.onlinelibrary.wiley.com/doi/10.1017/S0952836904005953
biodiversitylibrary.org/page/4394542#page/579/mode/1up
amphibiaweb.org/lists/Dendrobatidae.shtml
newscientist.com/article/mg14319332-700-science-poison-frogs-eat-poison-prey
onlinelibrary.wiley.com/doi/full/10.1111/azo.12375
web.archive.org/web/20150110235348/http://www.ext.colostate.edu/pubs/insect/05524.html
atlasobscura.com/articles/monarch-butterfly-poisonous-milkweed-science
sciencedirect.com/topics/chemistry/bee-venom
sciencedirect.com/science/article/pii/S0041010116302975
https://www.journals.uchicago.edu/doi/10.1086/physzool.47.4.30152529
merriam-webster.com/dictionary/exaptation
https://evolution.berkeley.edu/exaptations/
pnas.org/doi/pdf/10.1073/pnas.92.1.9
zslpublications.onlinelibrary.wiley.com/doi/pdf/10.1111/j.1469-7998.2009.00631.x
smithsonianmag.com/smart-news/worm-amphibian-may-pack-venomous-bite-180975266
cell.com/iscience/fulltext/S2589-0042(20)30419-3?_returnURL=https%3A%2F%2Flinkinghub.elsevier.com%2Fretrieve%2Fpii%2FS2589004220304193%3Fshowall%3Dtrue
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Images:
docs.google.com/document/d/1Shk015NpP0gnQ2QTfqbShBrO6TY7dRkFkHUBlhiawYE/edit?usp=sharing
Start speaking a new language in 3 weeks with Babbel. Get up to 60% off your subscription here: bit.ly/BizarreBeastsMar
Plenty of frogs can be poisonous, but Greening’s frog and Bruno’s casque-headed frog use bony spines on their snouts to break the skin of would-be predators and introduce toxins into their attacker’s bloodstream. This makes them the first species of truly venomous frogs that we know of. And they do it via headbutt.
Do you need your own venomous frogs? https://complexly.store/products/bb-march-25-venomous-frog
Subscribe to the pin club here: https://complexly.store/products/bizarre-beasts-pin-subscription
This month's pin is designed by Thiago Limón. You can find out more about him and his work here: https://thiagolimon.com.br/trabalhos
You can cancel any time by emailing hello@dftba.com
Follow us on socials:
Instagram: instagram.com/bizarrebeastsshow
Facebook: facebook.com/BizarreBeastsShow
BlueSky: https://bsky.app/profile/bizarrebeastsshow.bsky.social
#BizarreBeasts #frogs
-----
Sources:
amphibiaweb.org/species/685
amphibiaweb.org/species/676
cell.com/current-biology/fulltext/S0960-9822(15)00788-5
newscientist.com/article/dn28013-zoologger-worlds-first-venomous-frog-has-the-kiss-of-death
onlinelibrary.wiley.com/doi/10.1111/cla.12409
iucnredlist.org/species/55303/172201316#habitat-ecology
web.archive.org/web/20160303172623/http://botany.si.edu/projects/cpd/sa/sa19.htm
sciencedirect.com/science/article/pii/S0300962996004811
merriam-webster.com/medical/coossify#:~:text=coossified%3B%20coossifying,noun
zslpublications.onlinelibrary.wiley.com/doi/10.1017/S0952836904005953
biodiversitylibrary.org/page/4394542#page/579/mode/1up
amphibiaweb.org/lists/Dendrobatidae.shtml
newscientist.com/article/mg14319332-700-science-poison-frogs-eat-poison-prey
onlinelibrary.wiley.com/doi/full/10.1111/azo.12375
web.archive.org/web/20150110235348/http://www.ext.colostate.edu/pubs/insect/05524.html
atlasobscura.com/articles/monarch-butterfly-poisonous-milkweed-science
sciencedirect.com/topics/chemistry/bee-venom
sciencedirect.com/science/article/pii/S0041010116302975
https://www.journals.uchicago.edu/doi/10.1086/physzool.47.4.30152529
merriam-webster.com/dictionary/exaptation
https://evolution.berkeley.edu/exaptations/
pnas.org/doi/pdf/10.1073/pnas.92.1.9
zslpublications.onlinelibrary.wiley.com/doi/pdf/10.1111/j.1469-7998.2009.00631.x
smithsonianmag.com/smart-news/worm-amphibian-may-pack-venomous-bite-180975266
cell.com/iscience/fulltext/S2589-0042(20)30419-3?_returnURL=https%3A%2F%2Flinkinghub.elsevier.com%2Fretrieve%2Fpii%2FS2589004220304193%3Fshowall%3Dtrue
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Images:
docs.google.com/document/d/1Shk015NpP0gnQ2QTfqbShBrO6TY7dRkFkHUBlhiawYE/edit?usp=sharing
