Evolutionary BiologyRoyal Society Open SciencePeer-reviewed
The unexpected loss of the "hunger hormone" ghrelin in true passerines: A game changer in migration physiology
Stefan Prost, Jean Pierre Elbers, Julia Slezacek…·Leonida Fusani
The paper shows that true passerines lost the ghrelin gene but retain its receptor, suggesting a replacement ligand for migratory fat accumulation.