|Bigfoots are, most likely, a primate species. Most primate species spend a lot of time in trees, and all primates (including humans) are partly adapted to climbing in trees. |
Several credible witnesses have described seeing sasquatches in trees. Often the figures seen in trees were thought to be juvenile sasquatches.
As with bears, most sasquatches may be able to climb trees, but they may spend less and less time in trees as they grow older and heavier.