Join us in this fascinating episode with Dr. Araújo, a renowned paleontologist, as we delve into the mysteries of mammalian evolution and the crucial transition to endothermy. Endothermy, the ability of an organism to maintain its body temperature internally, is a feature that has played a significant role in the ecological dominance of mammals and birds. However, when and how this characteristic appeared during mammalian evolution has long been uncertain due to ambiguous fossil evidence.

Dr. Araújo presents his innovative approach to investigate this key evolutionary transition using the morphology of the semicircular ducts of the inner ear. These ducts, filled with endolymph, monitor head rotations and are vital for motor coordination, navigation, and spatial awareness. Changes in these structures could reflect the ectotherm-endotherm tra ...