13 May 2017 - Bernie (right) at play with another dog - Cambridge, MA, USA

I have posted a picture of Bernie earlier. This is him again, trying to bite a different dog's tail this time.

Camera: Luxgen
Aperture: f/2.8
Exposure: 1/1563 s
Focal length: 3.5 mm (lens)
ISO: 94
Flash: none