Modern human's larger brain size is often attributed to the theory that it was made possible due to an increase in consumption of meat. The remains of KNM-ER 1808, a specimen of Homo erectus dated to around 1.8 million years ago, has often been used as evidence for the hunter model due to its abnormal bone growths pointing to hypervitaminosis A from consuming excess animal liver. However, Mark Skinner has proposed that consuming bee larvae and pupae could also provide enough vitamin A to cause hypervitaminosis A. Due to insects nutritional value and abundance, they would also be able to provide the necessary amount of protein required for hominin such as H. erectus.
