The elephants they were hunting were also downsized (about 4 feet tall) as is common for species marooned on an island with limited food supply.
There are several arctic islands where whoolly mammoths survived for thousands of years after their continental cousins died out, by downsizing themselves (through selection) in just this way.
"by downsizing themselves (through selection) in just this way."
I did not know that. Did the eskimo hunt them?