Sully H.W. Bush, a yellow Labrador service dog who worked with the late former President George H.W. Bush, will be traveling with Bush's casket on his flight to Washington, DC, according to a source familiar with the plans.

Sully H.W. Bush, a yellow Labrador service dog who worked with the late former President George H.W. Bush, will be traveling with Bush's casket on his flight to Washington, DC, according to a source familiar with the plans.

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Tease photo

How America's VetDogs trains service dogs like Sully to perform long lists of commands

These puppers are cute and cuddly, and -- despite a recent crazy report questioning dogs' intelligence -- they're actually very smart. So smart, in fact, that they can perform a very long list of commands.

Tease photo

'Mission complete': Sully the service dog to accompany Bush one last time

Sully H.W. Bush, a yellow Labrador service dog who worked with the late former President George H.W. Bush, will be traveling with Bush's casket on his flight to Washington, DC, according to a source familiar with the plans.