Brain-inspired memory device

Many electronic devices today are dependent on semiconductor logic circuits based on switches hard-wired to perform predefined logic functions. Physicists have developed a novel molecular memristor, or an electronic memory device, that has exceptional …

Highly dynamic sex chromosomes in cichlid fishes

The cichlids of Lake Tanganyika in Africa are highly diverse — including with regard to sex chromosomes. These have changed extremely frequently in the course of the evolution of these fish and, depending on the species, can be of the type XY or ZW.