Evolutionary BiologybioRxiv
The unexpected loss of the "hunger hormone" ghrelin in true passerines: A game changer in migration physiology
S. Prost, J. P. Elbers, J. Slezacek…·L. Fusani
The paper shows that true passerines lost the ghrelin gene but retain its receptor, suggesting a replacement ligand for migratory fat accumulation.
DOI 10.1098/rsos.242107