American Airlines is no longer allowing certain emotional support animals on its flights.
The airline says insects, goats and hedgehogs are just some of the animals that cannot travel as comfort animals with passengers.
Those who want to bring a support animal on board a plane have to fill out paperwork 48 hours before a flight.
Even with the paperwork, some animals are off limits entirely because officials say they pose a safety or public health risk.
These revised rules will go into effect July 1, 2018.
You can read more about American Airlines' emotional support animal policy here.