Wow this is interesting. Apparently other animals like lobsters and ants social distance too.

https://theconversation.com/social-distancing-works-just-ask-lobsters-ants-and-vampire-bats-135383

And I've also seen the neuropilin 1 receptor, which I have a draft for, although I'm not sure if I'll finish it since other websites have covered it in deep detail.