Are biological species and higher-ranking categories real? Fish folk taxonomy on Brazil's Atlantic forest coast and in the Amazon - Begossi, Alpina; Clauzet, M; Figueiredo, José Lima de; Guaruana, L.; Lima, R.V.; Lopes, P.E.; Ramirez, M.; Silva, A.L.; Silvano, R.A.M. (Current Anthropology, 2008)