Cats and dogs have it tough: They can't use straws, or tip a cup up to their mouths to drink. Instead, they have to use their tongues and a few different physics tricks to quench their thirst.

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Sources:
http://blogs.discovermagazine.com/d-brief/2014/11/25/how-dogs-drink-revealed-in-super-slo-mo-video/
http://www.pnas.org/content/112/52/15798.full
http://science.sciencemag.org/content/330/6008/1231.full
https://books.google.com/books?id=LC4_DAAAQBAJ&pg=PT78#v=onepage&q&f=false
https://www.ncbi.nlm.nih.gov/pubmed/9503654