The Ig Nobel in Biology seems to honor several wild animals, such as goats and badgers. Two scientists won this award for separate projects. Charles Foster apparently lived in the wild, at different times, as a badger, an otter, a deer, a fox, and a bird (a swift), according to an Ig Nobel statement. And Thomas Thwaites won the Ig Nobel "for creating prosthetic extensions of his limbs that allowed him to move in the manner of, and spend time roaming hills in the company of, goats," according to an Ig Nobel statement. In his book "Goat Man: How I Took a Holiday from Being Human" (Princeton Architectural Press, 2016), Thwaites describes his journey, as a dressed-up goat complete with a prosthetic stomach for digesting grass and artificial legs, across the Alps with other goats. [Check out Ig Nobel winners from last year]
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Foster similarly describes his beastly journey in a book "Being a Beast" (Metropolitan Books, 2016). While living as a badger, Foster apparently slept on a Welsh hillside munching on earthworms; his otter days were filled with swimming and catching fish in his teeth.