Readers Explain Why Dogs Ignore Planes

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- Dyane Silvester of Arnside, Cumbria — a former dog owner and regular dog-sitter — theorizes dogs tend not to look up because, as a non-climbing species with no aerial predators, they have little concept of "up" beyond upward-sloping ground, and most will search a dropped object on the floor rather than realize a table was in between.
- Silvester recounts that her Alsatian could locate her from an upstairs window despite never having seen out of any upstairs windows in the house, and the same dog watched birds and low-flying aircraft — but was stumped when Silvester climbed out the skylight onto the roof.
- David Lewis of London reports a friend's late spaniel as a counterexample: the dog would look at aircraft overhead, bark, and chase them, though it never caught one.
- C. H. Johnson of Colyton, Devon, offers a tongue-in-cheek explanation: dogs ignore overhead planes and helicopters because they don't bring food or doggy treats.
Why it matters: The exchange shows how a simple observational question splits between evolutionary explanation (Silvester's claim that dogs lack a spatial concept of "up" because they neither climb nor face aerial predators) and individual behavioral variation, with Lewis's spaniel contradicting the premise outright.




