TRPM8 thermosensation in poikilotherms mediates both skin colour and locomotor performance responses to cold temperature.

Thermoregulation is a homeostatic process to maintain an organism's internal temperature within a physiological range compatible with life. In poikilotherms, body temperature fluctuates with that of the environment, with both physiological and behavioral responses employed to modify body temperature. Changing skin colour/reflectance and locomotor activity are both well-recognized temperature regulatory mechanisms, but little is known of the participating thermosensor/s.

Type II Opsins in the Eye, the Pineal Complex and the Skin of : Using Changes in Skin Pigmentation as a Readout of Visual and Circadian Activity.

The eye, the pineal complex and the skin are important photosensitive organs. The African clawed frog, , senses light from the environment and adjusts skin color accordingly. For example, light reflected from the surface induces camouflage through background adaptation while light from above produces circadian variation in skin pigmentation.

The role of interindividual licking received and dopamine genotype on later-life licking provisioning in female rat offspring.

Introduction: Rat mothers exhibit natural variations in care that propagate between generations of female offspring. However, there is limited information on genetic variation that could influence this propagation.

Methods: We assessed early-life maternal care received by individual female rat offspring, later-life maternal care provisioning, and dopaminergic activity in the maternal brain in relation to naturally occurring genetic polymorphisms linked to the dopaminergic system.