In contrast to plants, marine organisms, and arthropods, most mammals do not produce toxins in order to defend themselves. Instead, mammals have evolved a complex sensory system relying on recognition and signal trans-duction using endocrine hormones such as adrenaline to be alerted and defend either by escape or counterattack, relying on their physical strength. However, mammals also have evolved a very powerful system to defend themselves against compounds produced by bacteria, fungi, viruses, or parasites in their body - the immune system - consisting of the innate and the adaptive immune system. The latter relies on the generation of
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