Do squirrels hurt trees in any way?

I was doing this thing in science and i was wondering if they do? hiDo squirrels hurt trees in any way?
They don't do much damage--not enough to kill the tree, anyhow. Squirrels will chew branches and they knock off some loose bark here and there but nothing that will kill a tree.Do squirrels hurt trees in any way?
Hello, no they do eat the seed of any trees, but in their methods of storing these, they become symbiotic as a planter of trees, in prodigious proportions for re seeding of the forest canopies. They build nest in tree branches, and occasionally will use an existing cavity for their nest. The never make the hole, and insects that harm trees are sometime on the squirrels diet.
In the spring when trees start budding out, the squirrels eat the plump buds as food. It affects the tree somewhat but does not kill it. They hurt the nut crop by decimating it. My pecan tree makes loads of pecans every year but I never eat any. They will cut them out even before they ripen. For some reason they will plant nuts all over the neighborhood for future generations. So in a sense they help out. I was born in a community called Pecaniere. It was the work of squirrels. There were a forest of pecan trees every where.
They can strip of quite a surprising amount of bark and if carried to excess this could kill an individual branch but is very unlikely to kill the whole tree.
no, they do not.