Size comparisons of ARK Dodo VS Real Chicken/Dog, and ARK Brontosaurus VS Real Argentinosaurus. Even though the former has the role of ARK's own flightless, egg-laying bird, it's actually a fairly large
Brontosaurus - ARK Official Community Wiki
New Female Bronto Brontosaurus - Ark Survival Evolved Xbox PVE Official Clone | eBay