An analysis of the genomes of hybrids of distinct swordtail fish species uncovered a lethal incompatibility between certain combinations of nuclear and mitochondrial genes that encode subunits of ...

Livebearer fish are some of the most fascinating marine creatures. Instead of laying eggs, they produce fully formed live young. They only make up a tiny percent of fish species globally, but many ...

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 ...