How many stomachs does an ostrich have?

Ostriches are large flightless birds of Africa who lay the largest eggs of any living land animal. With the ability to run at 70 km/h (43.5 mph), they are the fastest birds on land. They are farmed worldwide, particularly for their feathers as they are used as decoration and feather dusters. Their skin is also used for leather products. Ostriches are notable for being the heaviest living birds.

These birds have three stomachs and an abnormally long intestine which requires at least 36 hours to digest the food ingested. The three stomachs all serve different functions. The glandular stomach takes the role of the missing gall bladder and empties into a "proventriculus" (storage) stomach and a muscular stomach (gizzard) which is called “ventriculus”. The ventriculus is where the stones and pebbles they eat to break down food are stored.