The Antilocapra ( American antilocapra (Ord, 1815)) is the fastest land animal after the cheetah and by far the fastest on the medium and long distance.
Consider that the antelocapra can reach average speeds of 56 km / h on 6 km sections, while in shorter efforts it can reach peaks of up to 90 km / h.
It is not surprising, therefore, that the animal has a very high VO2 Max, equal to about 300 ml / kg / min. This value indicates the maximum consumption of oxygen, or the maximum amount of oxygen that can be used by the cells of the whole organism in a minute, and is an index of the maximum aerobic power, that is of the maximum amount of energy that an organism can generate exploiting 100% your own aerobic metabolism.
In elite athletes dedicated to endurance sports such as cycling, there are peaks of VO2 max of 80-85ml / kg- / min.
Another curiosity is that the antilocapra blood has high levels of hemoglobin in its own blood, clearly superior to the goat, its close relative. Compared to the latter, the antilocapra also has a particularly light skeletal structure and has a larger heart, trachea and lungs.
