#ScienceSaturday Did you know that in some animals such as #shellfish, cancers can spread from one organism to another? This has not been documented in humans (except in rare cases of organ transplantation) and our well developed immune system would reject a cancer cell from someone else, in a reaction termed an alloresponse. And don’t worry, you can’t catch #cancer from eating shellfish! Here’s an excellent article by the New York Times describing these cancers: nyti.ms/3ZM5l1q