DiMorphism

Alternate title: Fly UnitedNotice how very different these lovely paramours are as they face to opposite poles in this most intimate of moments.

He, the smaller, has much the bigger eyes proprotionally. His visual world through green eyes, then, is likely far different from hers through blue. Things invisible to her he sees with greatest clarity–a matter of survival, or aesthetics perhaps.

She had sent me off on an urgent errand: retrieve the dog who was running off down the road. I shrugged on my boots in grumbling obedience, and tromped down the front steps, leash in hand.

But wait! Check out these ziggy flies! I called back, running inside for my camera.

He’s running down the road, you idiot!

Yeah, but look carefully how different these beauties are. It’s called dimorphism, I explained to her. She harrumphed in disgust.

I rest my case.