Castor canadensis, beaver brain endocast Alamosaurus or slate at Holzmaden

or slate at Holzmaden

Some convergence with the carnassials of other predatory mammal groups has also been noted

Anatomically and physiologically

One of the theories on the formation of these mud balls is that they formed when portions of the bank eroded off and fell into the water

Castor canadensis, beaver brain endocast Alamosaurus or slate at HolzmadenThis is a brain endocast of a beaver. An endocast or endocranial cast is a cast made of the mold formed by the impression the brain makes on the inside of the neurocranium (braincase), providing a replica of the brain with most of the details of its outer surface. Endocasts can also form naturally, when sediments fill the empty skull, after which the skull is destroyed and the cast fossilized. Scientists are increasingly utilizing computerized