Hemlock and Black Birch seem very compatible in these woods near Dean Brook. I’ve seen them joined like this in other spots nearby.
As more is learned about the ecology of forests and soil in general it is becoming more apparent that trees communicate through their roots and also through the mycelium of fungi in the ground. I’ve seen other examples of this growth behavior. This one is in Acadia N.P.
If you’d like to learn more about the Wood Wide Web, here is a Ted Talk with Dr. Suzanne Simard who has been pivotal in the research and discovery of tree communication.
It’s brighter if you click to enlarge and really does look like they’re holding limbs.