Atmosfääriset tuntemattomat eläinlajit

Atmospheric monsters are bizarre and seemingly impossible creatures. These sky-bound beasts soar silently above the human race, defying the conventional laws of physics, and their origins and intentions remain one of the most perplexing and fascinating mysteries in the realms of both ufology and cryptozoology.

http://mysteriousuniverse.org/2011/07/atmospheric-monsters-attack/

http://mysteriousuniverse.org/2011/02/airborne-anomalies-rethinking-atmospheric-lifeforms/

Voisiko maapallon ilmakehässä asustaa ilmaa kevyempiä tuntemattomia lajeja?