With teeth meant to snip food to quickly gulp down, Austroposeidon does not rely on processing food in the mouth, but in the gut, likely with the help of gastroliths. Dr. Darren Naish, lead consultant of Prehistoric Planet, brings up research that estimates that giant sauropods consumed around 500 kilograms of plant material a day (hence, assuming there are at least 20 members in the herd, they would consume around ten tonnes a day, as the show states).