There is no consensus about the status of these ideas. Indeed, the use of informational notions is controversial even when giving accounts of animal communication, with some theorists denying that such communication is the flow of information from one animal to another (Krebs and Dawkins 1984; Owren et al. 2010). The result has been a growing foundational discussion within biology and the philosophy of biology. Some have hailed the employment of informational concepts as a crucial advance (Williams 1992). Others have seen almost every biological application of informational concepts as a serious error, one that distorts our understanding and contributes to lingering genetic determinism (Francis 2003). Most of the possible options between these extreme views have also been defended. Perhaps most commentators within philosophy have seen their project as one of sorting through the various kinds of informational description that have become current, distinguishing legitimate ones from illegitimate ones (Godfrey-Smith 2000; Griffiths 2001; Godfrey-Smith 2007; Shea 2013; Lean 2014). Philosophers have also tried to give a reductive or naturalistic explanation for the legitimate ones.