Fémur humano (Fósil) .Tengo ideas, pero necesito el apoyo de ustedes por favor.
Unusual behavior on the waves with dark skin, but not on face or head. Remained in same general area, repeated same cycle of swimming, then riding a wave.
Possibly hunting or mating behavior?
A primate (i/ˈpraɪmeɪt/ PRY-mayt) is a mammal of the order Primates (i/praɪˈmeɪtiːz/ pry-MAY-teez; Latin: "prime, first rank"), which contains prosimians and simians. Primates arose from ancestors that lived in the trees of tropical forests; many primate characteristics represent adaptations to life in this challenging three-dimensional environment. Most primate species remain at least partly arboreal.