Job 41:20

Out of his nostrils goeth forth smoke, as [out] of a seething
pot or caldron.
] In which flesh or anything else is boiling. It is observed that there is a likeness between the crocodile and the river horse, and particularly in their breathing ^F21: and of the former it is remarked ^F23, that its nostrils are very large and open, and that they breathe out a fiery smoke, as out of a furnace.