There may be individual Earth creatures that approach the Kharaa in terms of physical prowess, in a particular fashion: a bull elephant and an Onos engaged in a tug of war, a gazelle and a Skulk in a 100 meter sprint – but on the whole, the Kharaa set physical benchmarks in excess of anything we have observed in nature thus far. From the crucible of their brutal evolutionary period have emerged creatures with truly awesome capabilities.