Swordtails are well-known beginner-friendly, community fish species, compatible with various other fish and environments. They have been bred for many generations, resulting in many different ...

Stanford researchers have gained new insights into how the rise of reproductive barriers between organisms creates new species and drives the incredible diversification of life on Earth. One major way ...

ATHENS, Ohio (Aug. 18, 2008) — Though skin cancer is deadly to male fish, it also has one perk: The black melanoma splotches arise from attractive natural markings that lure female mates. A new study ...

Justin Havird, Erik Iverson and their colleagues have identified genes involved in hybrid incompatibility in swordtail fishes. The sheepshead swordtail fish (Xiphophorus birchmanni). Photo credit: Dan ...

In many species all over the animal kingdom, males have eye-catching characteristics. Although often impractical, they are beneficial in finding a mate. Scientists have now mapped the genetic bases of ...

On 3 December 2018, the laboratory of Professor Axel Meyer, University of Konstanz published new findings of an experimental evolutionary project that ran for 30 years on the genomic mechanisms of sex ...