I also tried several pigeons. I have no excuse, since I live 30 minutes from the Cincinnati zoo. "Passenger" is a weird name anyway. I don't think anybody was riding them.
Irish servants of the 18th century sometimes negotiated contracts that provided that they would not be served salmon more than three times a week. https://www.epicurious.com/recipes/food/views/seared-salmon-with-raisin-and-caper-butter-237877
NASA had thought about sending several calves into space rather than a chimpanzee, but decided against it. That would have been the herd shot round the world.
I had to look this up because I thought it was the truth too. The eletrocution of an elephant was filmed by a company with Edison's name on it but he wasn't there and didn't have anything really to do with it. It wasn't related to the war of currents, which had already concluded 10 years previously. Poor elephant just had crappy owners who thought she deserved to die :(
I just read wiki about them, it's from French passager which means passing by, or migratory.
The La Brea Tar Pits directly translates to “The the tar tar pits”!