Bats and cetaceans (whales and dolphins) are very different.
A recent paper in the journal Biological Reviews of the Cambridge Philosophical Society offers some striking comments about the prevalence of discordance among phylogenetic trees.
What are the odds that two genes would independently converge on a similar DNA sequence?
Now what are the odds of this?
The problem now is that in a Darwinian world, evolution is supposed to be blind to future needs. This kind of data almost sounds like evolution is being directed to evolve the same complex trait over and over again. That doesn’t fit with unguided Darwinian processes