Cultural depictions have also created or reinforced misconceptions about dinosaurs and other prehistoric animals, such as inaccurately and anachronistically portraying a sort of "prehistoric world" where many kinds of extinct animals (from the Permian animal "Dimetrodon" to mammoths and cavemen) lived together, and dinosaurs lived lives of constant combat. Other misconceptions reinforced by cultural depictions came from a scientific consensus that has now been overturned, such as dinosaurs being slow and unintelligent, or the use of "dinosaur" to describe something that is maladapted or obsolete.