Giants who consume man.
"The Nephilim were on the earth in those days—and also afterward—when the sons of God went in to the daughters of humans, who bore children to them. These were the heroes that were of old, warriors of renown."
So they brought to the Israelites an unfavorable report of the land that they had spied out, saying, “The land that we have gone through as spies is a land that devours its inhabitants; and all the people that we saw in it are of great size. There we saw the Nephilim; and to ourselves we seemed like grasshoppers, and so we seemed to them.”