It is unknown whether Apatosaurus lived in herds or was solitary. Unlike most sauropods, Apatosaurus may have been solitary.

There are four accepted species of Apatosaurus. They are Apatosaurus ajax, Apatosaurus excelsus, Apatosaurus louisae, and Apatosaurus parvus.

Apatosaurus was a plant eater, or herbivore. They were huge, four legged dinosaurs with long necks, tiny heads, and whip-like tails.

Apatosaurus was a plant eater, or herbivore. They were huge, four legged dinosaurs with long necks, tiny heads, and whip-like tails.

The apatosaurus is the apatosaurus which is an herbivore.