What species are the Croods?

• The Croods are both knuckle-walkers and bipedal.
• They have the ability to speak and comprehend language. They can communicate like humans.
• They wear clothing such as fur.
• They can utilise fire.
• They have big teeth, robust bones and muscles.
• Because of their big teeth, it indicates that they eat tough foods.
• They domesticated animals.

Because of these points, I can infer that they are related to/ are Homo neanderthalensis.

Guy seems slightly more advanced than the Croods which I think makes him related to/ is a Homo sapien.