Are leopard frogs endothermic vertebrates?
No. They are vertebrates, but Leopard frogs are ectothermic, not
endothermic. All frogs are ectothermic, which is commonly referred
to as 'cold-blooded'. Frogs are amphibians, and all amphibians are
ectothermic, as are fish and reptiles. Their body temperature is
dependent on external environmental conditions.