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
Be the Creature Be the Creature Be the Creature is a creation of the Kratt Brothers (Chris and Martin). A wildlife series designed to immerse both the brothers and the viewers in the world of animals, unlike the brothers' previous works, "Kratts' Creatures" and "Zoboomafoo", "Be the Creature" is oriented towards a teen or adult audience. The brothers place themselves in the thick of the animal world, sometimes in high-intensity or dangerous situations. The series also features some graphic footage in an effort to portray life in the wild truthfully. A second season entitled, "Be the Creature 2", began in 2005. The show