Mailable animals vs

I think you meant to say "mail-carrying animals"!

Here are some examples of animals that have been known to carry mail or messages:

1. Homing Pigeons: These birds have been used for centuries to carry messages, particularly during times of war. They are trained to fly back to their loft, carrying a message attached to their leg.
2. Carrier Pigeons: Similar to homing pigeons, carrier pigeons are bred and trained to carry messages between two points. They are often used for racing and messaging.
3. Dogs: In some parts of the world, dogs are used to carry small packages or messages, particularly in rural areas where mail delivery is limited.
4. Mules: In the past, mules were used to carry mail between remote areas, particularly in the United States.
5. Donkeys: In some parts of the world, donkeys are used to carry small packages or messages, particularly in areas where roads are poor or non-existent.

On the other hand, here are some examples of animals that are not typically used to carry mail:

1. Cats: While cats are known for their agility and stealth, they are not typically used for mail delivery.
2. Elephants: While elephants are large and powerful, they are not typically used for mail delivery due to their size and the difficulty of training them for such tasks.
3. Snakes: Snakes are not typically used for mail delivery, as they are not well-suited for carrying packages or messages.
4. Fish: Fish are not typically used for mail delivery, as they are aquatic animals that do not have the ability to carry packages or messages on land.
5. Insects: While some insects, such as bees and ants, are able to carry small loads, they are not typically used for mail delivery due to their small size and limited carrying capacity.