Job 41:20
Ver. 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 {u}: and of the former it is remarked {w}, that its nostrils are very large and open, and that they breathe out a fiery smoke, as out of a furnace.
{u} Plin. l. 48. c. 8. Aristot. Hist. Animal. l. 8. c. 2. {w} Achilles Statius & Eustathius, apud Scheuchzer: ut supra. (vol. 4. p. 849.)