Bottled: Gillfrogs

Me: "Hey, what's this?" *Taps the jar*

Wizard: "Don't tap the glass, they hate that!"

Me: "S-Sorry! What are they?"

Wizard: "Aren't they beauties? They're ancient Riverine Gillfrogs, two of the last ones in the world, and I'm preserving them."

Me: "Oh, are they a couple?"

Wizard: "Actually, they're both male... So-"

Me: "Oh. Tragic."

Wizard: "Eh, it's alright, I could always perform a genderbending spell, but I'm still working on it."

Me: "How'd you find them?"

Wizard: "I was just out fishing when I saw these two swirling around, so I scooped them up in a jar and took them home before anything could eat them."

Me: "Huh. Neat."