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Aposematic organisms exhibit warning signals coupled with chemical defences. Both primary and secondary defences can be costly and may compete for the same resources, which may lead to different allocation strategies. In the aposematic wood tiger moth, Arctia plantaginis, a major component of the chemical defences are produced de novo, and secreted...
A good acquaintance with the fundamental evolutionary patterns and processes is considered essential for any biologist and for laypeople as well. Therefore, correct understanding and communication about evolutionary themes should play a central role in modern scientific education and awareness. Wikipedia is probably the largest reference work on th...