"This fundamentally changes how we think about the evolution of complex nervous systems," said biologist Jack Ullrich-Lüter.

Max Cooper and Brantley Herrin discuss the evolution of innate and alternative adaptive immune systems for defence purposes and conclude that successful vaccines and other therapeutic manipulations of ...

The amygdala is part of the limbic system, which regulates emotional and behavioral responses. An amygdala hijack is a fight-or-flight response to stress. To better understand what an amygdala hijack ...