Casey Luskin earned his PhD in South Africa and had many opportunities to study various hominid fossils.
The stone objects, dated from 50,000 years ago, look like the ones made by capuchin monkeys today.
London-based wood carving conservator Ben Bacon has, with academic colleagues, shaken up Ice Age paleontology.
However, Neanderthals are not thought, based on current evidence, to have had much interest in dogs.
Neanderthals were not just downing raw hunks of meat 70,000 years ago, as many of us have assumed.