Re the bats: In the natural derivation scenario, the bats would have infected pangolins as an intermediate host at a site other than Wuhan (southern Asia, Africa, etc), leading to a co-infection cycle of bat and pangolin C-viruses within the same animals. Scales from these pangolins, or possibly live animals, were then transported to markets in Wuhan where CoV-2 made the jump. Genome sequence comparisons support the idea there are segments of both pangolin and bat C-virus present in CoV-2, suggesting recombination between the two viral genomes occurred. Such recombination events are hardwired into the the C-virus replicative cycle and are part of the reason this group of viruses can evolve so quickly. Whether these recombination events occurred naturally at a site other than Wuhan or as part of a laboratory study conducted in Wuhan is an unresolved question. But whether the bats are native to Wuhan does not weigh in on it directly. A thing to keep in mind is that, no matter the sequence of events in this particular case, CoV-2 could quite readily have arisen through a relatively well understood natural process. As humans come into new contact with co-evolved natural host-virus relationships around the globe, some virologists are predicting that we will be seeing more of these zoonotic outbreaks in the immediate future.