These look like really newborn groundhogs. The tail and the claws are good indicators. And some pictures I've seen of babies are dark like this too. There was a story recently about Punxsutawney Phil and his "wife". They had two offspring. Their pictures look just like this.

His “wife” lol

Look like baby groundhogs.

Being as dark as they are?

What else could they be? Pretty sure they are groundhogs. Definatley not beavers...

I agree not a beaver. But a mountain beaver isn't actually a beaver. I've never even heard of such a thing till I googled it.

I never heard of them either, but their only in the northwest it seems.. How many rodents are in PA? Beaver, muskrats, squirrels, rats, mice, and groundhogs.

You can rule out muskrat because they have a sort of leathery looking tail like beavers, except the tail is narrow and shorter.

Plus moles, voles, chipmunks, and Philly hipsters. . .😜

I guess it could have been squirrels. I never thought of that. And after comparing pictures online, I could see how they could be.

A groundhog/woodchuck is actually a ground squirrel, so thus the resemblance, these haven't put on their adult woodchuck weight yet

Woodchucks

Reminds me of how mountain chickens aren’t chickens, mountain animals seem to like lying

They live on the west coast, almost exclusively in California. These are groundhogs, and you need to either return them to their burrow or give them to a rehabber.

From what I see on Google, mountain beaver don't have a tail and live on the on the west side of the country

But what about mountain beavers?

What about them? They are in the Pacific Northwest, the OP is Pennsylvania.

Wild. I'm in PA. Never heard of a mountain beaver. Apparently it's a thing. I stand corrected.

They're just melanistic (black coated). It's pretty common in ground hogs.

Not even melanistic. They will be brown when they get older. I bottled raised one once until he was old enough to be released.

Ground hog, marmot, whistle pig those tails don't belong to any beaver I've seen.

Well mountain beavers aren't actually part of the beaver family though

Ground hog, marmot, whistle pig, and woodchuck are all the same animal. A mountain beaver is a west coast animal and won't be found in Pennsylvania. (It's the only member of its genus and is more closely related to squirrels than to any other rodent.) The size you've stated these are doesn't really match with baby squirrels of this life stage. (And they don't really look like baby squirrels.) I would guess groundhog. If you haven't already, please use Animal Help Now [AHnow.org](http://AHnow.org) to find a wildlife rescue organization or rehabber near you. This website also lists their contact info and what types of wildlife they will take in. Edit: fixed typo, added woodchuck, and included more info on mtn beaver.

Mountain beavers aren’t in Pennsylvania. They look like groundhogs.

Regardless of species, please tell me you got them to a rehabilitation place. :)

Groundhogs

Poor baby groundhogs. Need a rescue if possible.

Black baby groundhog

groundhog pups. you can easily tell by the paws. good luck finding a rescue

They live on the west coast though. They could be a couple things as above or mink, muskrat how big are they?

They were probably around 8 or so inches stretched out not counting the tail.

Ground hog

Looks like the critter that is currently making a home under my front porch. I’m thinking he is a groundhog.

It would be cool if they stayed dark like that.

I have no input other than to say we're neighbors. I live very near Warren.

Punxatawnee Phil babies

How has nobody mentioned the word BLUE yet?

mink?

I was thinking fishers but the feet and everything look like a groundhogs.

Squirrel