• Low activities of digestive enzymes in the guts of herbivorous grouse (Aves: Tetraoninae) 

      Newman, Julianne; Maurer, Maya; Forbey, Jennifer S.; Brittas, Rolf; Johansson, Örjan; Nielsen, Olafur K.; Willebrand, Tomas; Kohl, Kevin D. (Peer reviewed; Journal article, 2021)
      Avian herbivores face the exceptional challenge of digesting recalcitrant plant material while under the selective pressure to reduce gut mass as an adaptation for fight. One mechanism by which avian herbivores may overcome ...