Iron-rich immune cells help homing pigeons navigate

adrian_b

Unlike TFA, the corresponding research article is open-access: https://www.science.org/doi/10.1126/science.ady2486

trebligdivad

one of the articles lines is more generally interesting 'In mammals, neurons in the spleen can communicate with macrophages, and in both mammals and birds, these neurons also connect to the central nervous system.'.

ramraj07

Such an elegant finding. I only wish they did slightly more to validate the result further. Depleting all macrophages is a fairly drastic step. Heck, you dont even know what other tissue this affected. Theres no correlation that only liver macrophages or their iron or neuronal connections were the responsible system for the disruption observed.