Harvest-ironman: heavy armature, and not its defensive secretions, protects a harvestman against a spider

@article{Souza2011HarvestironmanHA,
  title={Harvest-ironman: heavy armature, and not its defensive secretions, protects a harvestman against a spider},
  author={Elene da Silva Souza and R. Willemart},
  journal={Animal Behaviour},
  year={2011},
  volume={81},
  pages={127-133}
}
Natural selection has caused prey species to evolve distinct defensive mechanisms. One of such mechanisms was the evolution of noxious or distasteful chemicals, which have appeared independently in a number of vertebrates and invertebrates. In detailed analyses of arthropod behaviour, scent gland secretions have consistently been shown to be responsible for repelling specific predators. Because using such chemicals is costly, animals with alternative cheaper defences are expected not to release… Expand

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