"They spend time up on the platforms in the enclosure, relaxing, sleeping and grooming each other," says Mr Taylor.
Check out the adorable friends below:
Just last night, says Mr Taylor, another macaque joined in friendship, and they were all seen grooming.
According to WFFT, Alan shares food with the macaques and Jo Jo seems to love him.
Mr Taylor adds that the foundation has never observed such a friendship between a monkey and a cat at WFFT before, and that they are trying to get more pictures of the pair together. Click for more trending news
Get the latest election news, live updates and election schedule for Lok Sabha Elections 2019 on ndtv.com/elections. Like us on Facebook or follow us on Twitter and Instagram for updates from each of the 543 parliamentary seats for the 2019 Indian general elections. Election results will be out on May 23.