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.
Bigger Cats Vs. Among big cats, no feline can run faster than the cheetah -- no other land animal, for that matter, either. Cheetahs top out around 70 mph -- more than double the top speed of the fastest domestic cats -- during the course of 200- to 300-yard sprints. By way of comparison, lions run at about 50 mph, not quite double that of domestic cats. Think your house cat gets the zips? Cheetahs can go from zero to 60 mph in three seconds with strides that cover 23 to 25 feet apiece, according to National Geographic.