Histological and gene expression analyses of the arm and finger macroglands of two Hyloxalus frogs (Dendrobatidae)

January 19, 2026

Chemical communication during amphibian courtship, based on the production of pheromones by specialized reproductive glands, is well documented in salamanders and newts but remains poorly known in frogs. In many Neotropical poison frog species (Dendrobatidae), males have glandular tissue on their…