End systolic volume (ESV) â The amount of blood still in the. ventricles after the contraction is complete. End diastolic volume (EDV) â The amount of blood in the. ventricles after they have filled but prior to the beginning of. the contraction.
This is the fastest form of travel for most snakes, but rattlesnakes donât engage in this style of locomotion often. Rattlesnake speeds have not been specifically measured, but they likely travel at about 2 to 3 miles per hour in very short bursts. In comparison, the fastest humans can run up to 28 miles per hour.
1 | Baby rattlesnakes range in length from 6 to 12 inches and are easily camouflaged by brush and grass. 2 | Baby rattlesnakes are rattleless until they first shed their skins, so there will be no infamous chica-chica sound before they strike. 3 | Despite their impish size, baby snakes have enough venom to be very dangerous if they bite a human.