Air carrier Captain reported transporting HAZMAT that were not allowed in the reporter's operations.

Narrative

Boarding was complete and we received the ACARS loadout. It stated we had medical goods and dangerous goods in the forward cargo. Asked Operations about it and they sent a Ground worker up to talk. I asked if there was dry ice and biohazard on board. He stated no there are two boxes and no dry ice. I further asked what was in the boxes and he stated a dead animal and body parts. Since this sounded normal; and no dry ice; and no biohazard; I assumed that all was well. Once he stated body parts I should have went and looked myself at that time; but I trusted the worker to do their job but they were trying to do.We departed. After arriving in ZZZ; the FO upon walkaround took a photo of the material in question and it was more boxes (3) and had labeling showing 'type A' and 'radioactive two.' I search our manuals for the labeling 'UN 2915' but came up with nothing more than the many labels that could show up on shipments in the manuals. Also; what I did find was that none of the aforementioned items in this paragraph are allowed in our operations. Incident report filled out and email.Other than verify everyone's job is done and trust that training is lacking; I would make sure scanners and electronic measures are used to confirm items are correctly labeled when scanned in. Could be done with taking images of the scanned item and could derive a legal load.Accepted unnecessary hazard with knowledge of the hazard; failure to properly inspect. Failure to follow procedure by other party; safety concern regarding other party.