The “kings of the aquarium,” Discus fish showcase dazzling blues, reds, and greens in incredible patterns. These calm fish glimmer in brilliant blues and blazing oranges, with an inherent charm that ...

The genetic underpinnings of pigmentation and colour patterning in fish encompass a complex interplay of gene regulation, cell fate determination and evolutionary innovation. Neural crest cells, which ...

Similarities in how different organisms look can indicate a close evolutionary relationship. Conversely, great differences in appearance can suggest a very distant relationship, as in many adult ...