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Mode of use of sexually dimorphic glands in a Neotropical harvestman (Arachnida: Opiliones) with paternal care
Males of Iporangaia pustulosa (Arachnida: Opiliones) have a sexually dimorphic metatarsus IV, which is thicker and with more glandular pores in males. Here we tested the hypothesis that thisExpand
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Sexual differences in weaponry and defensive behavior in a neotropical harvestman
Abstract Sexual differences in morphology can evolve by sexual selection and/or natural selection. In some species, only males have morphological structures that are used as weapons. Since someExpand
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Are trichobothria used in terrestrial prey capture by the yellow scorpion Tityus serrulatus Lutz & Mello, 1922 (Buthidae)?
Abstract Many arachnids rely on substrate-borne vibrations and air displacement to detect prey. Air-flow stimuli may be detected by long setae called trichobothria, which occur on scorpion pedipalps,Expand
Harvestmen are fearful in the light but not the darkness
Abstract. The defenses of harvestmen encompass nipping with spines, releasing of chemicals, fleeing, bobbing, crypsis, and death feigning. Animals are expected to invest more in death feigning inExpand