Temperature drives the evolution and global distribution of avian eggshell colour
P. A. Wisocki, P. Kennelly, I. Rojas Rivera, P. Cassey, D. Hanley
This study shows that darker and browner avian eggs evolved in cold climates due to thermoregulatory advantages, with temperature explaining over 80% of global eggshell color variation.
bioRxiv · Mar 10, 2019Ecology