system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: How did Brachiosaurus' find enough Vegetation to eat, and how were plants enough for this huge animal?

**Title**
gpt
They dont have to chase their food and theres a lot of it so they spend their entire day eating. Its just like how cows produce insane amounts of meat from mostly grass or hay. Because they eat constantly.