Probably not what you were thinking but there’s plenty of stories of dogs not leaving their owners after death like Greyfriars bobby.
Also elephants are known for mourning their dead.
I think if I donated my body to science and they were all done with it, and they could make more money for research by selling bits off to weirdos that would be fine by me. Maybe put a little QR code on it that people could scan and get a little biography of me. That would probably make archeology a lot easier.
‘what fills the gap’ in my ass - will cady