Evolution of cetaceans decreasing. Other historical climate events can be correlated and matched with the genome history of the Yangtze River dolphin as well. This shows how global and local climate change can drastically affect a genome, leading to changes in fitness, survival, and evolution of a species. The European population of common dolphins ("Delphinus delphis") in the Mediterranean have differentiated into two types: eastern and western. According to a 2012 study, this seems to be due to a recent bottleneck as well, which drastically decreased the size of the eastern Mediterranean population. Also, the lack of population structure between the western and
Delphinus to the coast of Greece and left. In Chinese astronomy, the stars of Delphinus are located within "the Black Tortoise of the North" (北方玄武, "Běi Fāng Xuán Wǔ"). In Polynesia, two cultures recognized Delphinus as a constellation. In Pukapuka, it was called "Te Toloa" and in the Tuamotus, it was called "Te Uru-o-tiki". USS Delphinus (AF-24) and USS Delphinus (PHM-1), two United States Navy ships, are named after the constellation. A house at Sutton Girls is named Delphinus Delphinus Delphinus (Eng. U.S. ) Eng. oth: ) is a constellation in the northern sky, close to the celestial equator. Its name