heterotrophy
durophagy
https://www.wikidata.org/entity/Q5316712
http://orcid.org/0000-0002-2908-3327
A heterotrophic process during which a living entity acquires food and energy from consuming hard organisms or hard parts of organisms. This can include plants, such as bamboo, animals with hard shells, such as corals, or the hard parts of organisms, such as bone. Durophagy requires special adaptions, such as blunt, strong teeth and a heavy jaw.
https://en.wikipedia.org/wiki/Durophagy