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Dolphins Communicate with ‘Fountains of Pee’
(www.scientificamerican.com)
A place for majestic STEMLORD peacocking, as well as memes about the realities of working in a lab.
Rules
This is a science community. We use the Dawkins definition of meme.
smell is the first sense, pretty much. single-celled organisms already have it.
of course, in some ways, it's not as easy as for example vision. you need 3 different kinds of photoreceptors to see pretty much all that there is to see, but you need god knows how many chemical receptors in your nose (or all over your cell wall in the case of bacteria or the like) to sense all the interesting stuff floating around.