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According to an article by the Associated Press and written by Sharon Theimer that I read from the Casa Grande Dispatch newspaper, short snouted dogs are less likely to survive being transported in airplanes than their long nosed brethren.
In a report of all dog deaths since May 2005 Bulldogs with 108 purebreeds reported nearly 1/4 (25 dogs) were English Bulldogs who died during transportation. Pugs were second with 11 deaths and French bulldogs accounted for 6 deaths.
These result from heat increases in the cargo section of a plane combined with a dogs increased panting and breathing rate due to nervousness. Short nosed breeds have a skull formation that restricts their airways and if they can’t pass enough air they can pass out or overhead as panting is the only way they can cool off.
Though short nosed pets are more at risk of being transported on flights the overall death rate of pets flying on a plane is very low overall compared to the number of pets that are transported. Still this is little consolation to the owner of a beloved family member who may lose a pet being transported in a plane.