Back 40 and Beyond Spiders

Look closely and you will see that this jumping spider, found in my backyard, has some prey.
And you just have to look closely to see how well this one blends into the sand. Found on a Brooklyn beach. It had turned over on itself in a sandy depression and pulled in all its legs. At the behest of my beloved, I gently urged it out of the hole and on its way. Considering all the topsy-turvy beach ahead, that may well have been Sisyphean. Could this be a male wolf spider?