American pika are small mammals that are related to rabbits

Last updated: 7/6/2022

American pika are small mammals that are related to rabbits and usually live above the tree line in the mountains of western North America. Pika are herbivores that maintain a high basal metabolic rate and high body temperature as adaptations to living at high elevations in the mountains where temperatures are cold. If you were to measure the levels of T3 and T4 hormones in pika, what would you predict?