The top row shows variation in a zooplankton, Daphnia: the morph on the right is produced in the presence of a predator cue. The second row shows an example of dimorphic variation in horn length, ...

Sexual dimorphism is one of the most prevalent, and often the most extreme, examples of phenotypic variation within species, and arises primarily from genomic variation that is shared between females ...

Intraspecific variation in foundation species such as mangroves (above), corals, and kelp forests serves to maintain ecosystem resilience in the face of a rapidly changing climate. (Photo by Simone ...