During his madness, Nebuchadnezzar's hair grew like what?

Answer: Eagles' feathers

His hair grew like the feathers of an eagle and his nails like the claws of a bird, until his sanity was restored.

“At that moment the sentence against Nebuchadnezzar was fulfilled. He was driven away from mankind. He ate grass like an ox, and his body was drenched with the dew of heaven, until his hair grew like the feathers of an eagle and his nails like the claws of a bird.”— Daniel 4:33 (BSB)