According to a study published in the Journal of Morphology, the wandering salamander controls its grip on the tree bark by pumping and draining blood in the tips of their square-shaped toes.

They found out that the HOA intended to cut the tree down, and their "blood pressure spiked" over the idea. The HOA's decision came without consulting an arborist to assess the tree, which was ...

Wandering salamanders fill their toes with blood when they're ready to leap, then drain it on landing for better grip. (Image credit: Photo by William P. Goldenberg) While using high-resolution ...