For the latest "missing link" which supposedly “demonstrates that the animals evolved the ability to fly before they could echolocate”, consider another position on this particular find.
Creation-Evolution News Headlines is a great source for checks and balances when considering the dogmatic insistence that everything in nature evolved from that first blob of matter that happened to miraculously evolve from primordial goo.
For mainstream science, everything must fit the evolutionary paradigm. You'll find that quite frequently it takes some seriously unrealistic just-so stories and inferences to make that happen.
[Photo credit and copyright:
American Museum of Natural History]