Well, I'm kinda new here but I am a solid country gal with dogs that live the country life and kill and eat things alot worse than that. I could post the photo of my JRT cross killing a 5' black snake but maybe that wouldn't be popular.

I would say it "could" be a newborn mole but not knowing the size of it and I bet you didn't get out a tape measure, LOL it looks more like a newborn squirrel as the moles have very long claws and their legs turn out. I know because I think there is a dead one laying out in one of the yard areas of my place right now.

I can also say that my dogs eat EVERYTHING. The JRT catches mice in grain barrels by the dozens and just swallows them whole (eat your heart out kitties) but I also have fed my dogs raw meat diet for 9 years so they are use to eating raw things. It wouldn't hurt you dog but could have made her tummy upset if she wasn't use to it. I bet there have been a few gross things our dogs have eaten that we weren't aware of and probably wouldn't want to know and it probably didn't make them sick.

Just my 2 cents

Cheers,
Carole & her gang
Truegrit Farm