I was having a conversation with a friend today and this thread came to mind.......... I wonder if it's something similar to the sable in Tuli Block?

Before the 1960s, the Tuli had good sable populations and then they all died out. There's been numerous attempts at reintroductions and all have failed and although the one wanders in, they never survive for long at all....... and no-one seems to know what the reason is.

I wonder if this might be a similar thing?