What is a butterfly's heart rate?

Butterflies do not have a heart, but they do have a circulatory system. It's just an open circulatory system as opposed to the closed system that we have. read more

Butterflies don't have an heart, insects don't have an heart, they don't have a circulatory system either, their organs are litteraly bathed in hemolymph, which is the insect equivalent for blood. read more

Butterflies have linear hearts that travel the length of their bodies. Butterflies insects and spiders also use the blood flow to move their limbs and wings, so in the case of butterflies about 50-60 bpm. read more

Wow, that passionate kiss just caused a "butterfly" in your chest. The same sensation occurs when you watch a scary movie or finish a strenuous workout. After a second or two, it fades away. read more