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Random thought I had on bats since they "see" by hearing reflected sounds:

Can bats know what another bat is looking at or even see what another is seeing by listening to the other's echoes? I imagine they can also recognize each other's voices and so identify individuals in flocks with the images they are seeing. I imagine this would be like being able to beam a stream of visual information into another's head.

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I think the answer to your first question is mostly yes, because we know that when traveling in large swarms, many bats go quiet so they don't overwhelm the signal, yet they still manage to navigate fine.

Maybe they're just following the sound of the other bats directly, they way you would if you were blindfolded and told to walk with a group of people.

That's a good point

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