Do Only Mammals Have Adrenaline?
Do Only Mammals Have Adrenaline? Also known as epinephrine, adrenaline is a hormone released by our adrenal glands when we feel under threat. … The most basic vertebrates to which we, reptiles, birds, fish, amphibians, and other mammals are related to are sensitive to the power of adrenaline. How does adrenaline affect animals? What’s more,