What metric do scientists usually apply when determining the "biggest" animal of all time?

Answer

Mass (total amount of matter)

When scientists determine the biggest animal, mass is usually the standard they apply, as this metric shifts the title away from extremely long but relatively lighter terrestrial creatures toward the massive aquatic ones.

What metric do scientists usually apply when determining the "biggest" animal of all time?

#Videos

Is There An Animal Bigger Than The Blue Whale? - YouTube

animalsizedinosaursauropodWhale