Sequence 1 length:3 
Sequence 2 length:6 
Alignment length: 6 
Identity: 3/6 (50.00%) 
Similarity: 3/6 (50.00%) 
Gaps: 3/6 (50.00%)
---AGC
   |||
AGCAGC
Like this. Difference between lengths is considered non-matching.
I get a similar effect if sleep deprived long enough. A sense of operating on autopilot and doing things before thinking of them.
My guess is that air is too violent and diverse compared to something like ocean. A neutral buoyancy organism wouldn't calmly float, it would be buffeted around by wind and smashed against ground. And there's no "surface of the air" to anchor itself.