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You tell me: a raven knows hundreds of warning calls, with which he warns his peers of threats; including in front of people. What kind of information does such a warning call contain about people, Rabe?  

SpokenMePic_Retro_Roommate_Bubble

https://www.youtube.com/watch?v=UkEc16J0HM4 Mitbewohner_glubschiges Mineral In lautlosen Liftzügen schwingen sie empor durch den Flaschenkahn. Air bubbles in the morning, close to my open-eyed sleeping. Here ...