Shiranui pulled out his Rotom Phone and had Rotom scan the Growlithe in the photo.  "Entry found in historical records," Rotom chirped, "[i]Growlithe: Hisui Form, the Scout Pokémon.  A Fire and Rock type.  They patrol their territory in pairs.  It is believed the igneous rock components in its fur are the result of volcanic activity in its habitat.[/i]"
"It's definitely fascinating that you have an ancestor four generations up your family tree that lived in Hisui," stated Shiranui, "But I have an alternate theory that could potentially open a can of Wurmple."  He asked his phone, "Rotom, cross-reference Hisui and any organisations that begin with a 'G'."
"My search reveals a historical account of an organisation called the Galaxy Expedition Team that studied the Hisui region (now known as Sinnoh) back when Jubilife City was only a village," Rotom answered.