[["Yes, butterflies and all other insects have both a brain and a heart. ... The butterfly has a long chambered heart that runs the length of its body on the upper side. ", 150.0], ["Yes, butterflies and all other insects have both a brain and a heart. ... The butterfly has a long chambered heart that runs the length of its body on the upper side. It pumps hemolymph (it lacks the red color of blood) from the rear of the insect forward to bathe its internal organs", 50.0]]
do butterflies have hearts
animals,butterfly