Fox Squirrel

By Cyndi Bohannon   Fox Squirrel Squirrelly –adjective; eccentric, cunningly unforthcoming, reticent, odd, crazy, unpredictable, jumpy, restless or nervous…….a pretty unflattering description all things considered.  However, the adjective actually describes behaviors that with respect to evolution are extremely advanced. The squirrel’s bizarre zigzag / double back flight from danger seems random and indecisive, but is brilliant  in light of millions of years of evolution against  “death from the sky”. Once a raptor has committed to a strike, there is very little that can be done to change direction, successfully dodging this threat yielded more zigzagging squirrels. Unfortunately, this strategy actually makes them more vulnerable to cars, dogs or cats. Evolution gave squirrels large eyes that are high on the skull to provide an extremely large field of view; just what a tasty morsel needs to evade being someone’s dinner. Unfortunately,  this eye placement severely limits frontal vision and depth perception. To compensate, squirrels constantly scan for threats and perform complex “bob and weave” behaviors to triangulate distance. People sweat, dogs pant and squirrels get wet feet. Locating sweat glands on their feet, between the foot pads and on their paws between the toes seems an odd manner to regulate temperature, but in combination with scent glands,  it allows the squirrel to constantly lay down a scent trail, thereby claiming all they touch. Squirrels also appear to lovingly rub nuts on their face before caching. What appears as a cute behavior actually allows scent glands on the cheeks stamp the nut as “mine!”. A large proportion of the brain is dedicated to spatial memory. Contrary to folklore, squirrels really do remember most of their cache locations (and I can’t even find my keys!) This [...]