The Frog with Hidden Claws

A frog with retractable claws? Weird. A frog with claws that it has to push through its skin to use? Even weirder.

Hosted by: Hank Green

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Sources:
https://doi.org/10.1098/rsbl.2008.0219
https://www.researchgate.net/profile/Madhava-Meegaskumbura/publication/259644040_AMPHIBIANS_OF_THE_INDOMALAYAN_REALM/links/00b4952d090e8b152b000000/AMPHIBIANS-OF-THE-INDOMALAYAN-REALM.pdf#page=19
https://zslpublications.onlinelibrary.wiley.com/doi/pdf/10.1111/j.1469-7998.2009.00631.x
https://www.newscientist.com/article/dn13991-horror-frog-breaks-own-bones-to-produce-claws/
http://dx.doi.org/10.1111/j.1469-7580.2009.01068.x

Image Sources:
Communication with David C. Blackburn
https://www.istockphoto.com/photo/black-and-white-cat-scratches-his-nails-on-a-sofa-gm1280290840-378636221
https://commons.wikimedia.org/wiki/File:Ke_-_Trichobatrachus_robustus_-_4.jpg
https://commons.wikimedia.org/wiki/File:TrichobatrachusGreen.jpg
https://www.istockphoto.com/photo/fluffy-gray-cat-gm576748574-99127103
https://commons.wikimedia.org/wiki/File:Ke_-_Trichobatrachus_robustus_-_5.jpg
https://commons.wikimedia.org/wiki/File:Pleurodeles_waltl_by_Ark.jpg
https://commons.wikimedia.org/wiki/File:Pleurodeles_waltl04.jpg