United just banned ’emotional support animals’ on long flights — and science is on the airline’s side

United just barred emotional-support pets from flights longer than eight hours. Delta made a similar move last month. Animals have been peeing, defecating, or mauling passengers onboard flights, and airlines are starting to crack down. Unlike service dogs, “emotional support animals” are an unregulated group. There’s little scientific evidence about what they really do for people.

Emotional support peacocks. Emotional support snakes. Emotional support hamsters.

People have brought all sorts of “support animals”

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