BIO 2135 Lecture Notes - Lecture 11: Pedipalp, Opisthosoma, Arthropod

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Nobody relaly knew who came first in arthropod tree they use special set of first appendages for feeding: fangs fangs we typically assosciate with spiders and stuff. Hunting spiders, great big eyes all the way around, bcuz cuticle, cannot shift lens, so one view. Take optic surface, and rotate it around, hunting spider can form visual images with very high resolution with rotating the optic surface inside the eye cup. Aggressive viscous animals, they are predators, when you are blind, and wanna mate with female, she understands you are mate, not dinner. Ready to go, with sperm pack to give her incase you change your mind, orgins of rituals, male cme up pluck web eith vibrations, so tell male of own species, so female is lowered into stage. Silk is one of the most interesting protenacious compounds out there, same tensile strength as peice of steel. Phenomenal its elastic , it doesn"t break, stretch and return back.