- Data from: Comparative support for the expensive tissue hypothesis: big brains are correlated with smaller gut and greater parental investment in Lake Tanganyika cichlids(2016-05-04) Tsuboi, Masahito; Husby, Arild; Kotrschal, Alexander; Hayward, Alexander; Büchel, Séverine Denise; Zidar, Josefina; Løvlie, Hanne; Kolm, Niclas; Uppsala University - Tsuboi, Masahito; University of Helsinki - Husby, Arild; Stockholm University - Kotrschal, Alexander; Stockholm University - Hayward, Alexander; Stockholm University - Büchel, Séverine Denise; Linköping University - Zidar, Josefina; Linköping University - Løvlie, Hanne; Stockholm University - Kolm, Niclas