Bill do you think that is based on the yoy watching the adults (learned/adaptive) or do you think that eating pellets is a heritable trait? We now know that several behaviors/traits which were once thought to be learned are at least partly genetic/heritable .
ewest, don't know if will be helpful but IIRC some have suggested that the ability to learn is variable and heritable. In the literature, this has also popped up propositionally in vulnerability studies seeking answers to the question which other traits are being selected for when high (or low) vulnerability is selected.
