Salzburg’s cichlids can reach about 2 inches long in the wild but “tend to grow much larger in captivity,” the study said. They have “large” heads, “large” mouths and “widely ...

and marbled cichlids. Oscars are popular in aquariums and require very large tank setups with similar water conditions to their natural habitat. Although Oscars are usually housed alone ...

Chromosomal inversions are an important class of genetic variation that link multiple alleles together into a single inherited block that can have important effects on fitness. To study the role of ...