Write An Essay On Blue Whales Evolution

The blue whale is one of the largest known species to exist and the largest mammal on Earth. The blue whales are measured to be as long as a jet, its living heart to be scaled to the about the same size of a car, and whose tongue weighs on average of 2.7 tonnes about the same weight of an elephant. Researchers have made a scientific breakthrough of how these creatures have grown to be this size. About 2.5 million years ago scientist believe based on their data a group of whales, the Baleen whales were 6- 10 feet. Scientists say their growth is caused because of the changes in their diet. According to Graham Slater, a biologist that these whales have only been recorded as giant creatures fro almost 3.6 million years but they have been alive longer for 10 times that. Scientists studied lengths and sizes of 63 Baleen whales and took measurements of their skulls and 13 other living species. They recorded the data of the lengths with computer models and they examined their family tree altogether. Scientists found behind this that their size grew independently among branches of the family tree and also the smallest and largest whales
Though, others are convinced to believe there are one or more factors that play a role in this part. Some factors they suggested was evolution and climate change, but from the latest research, the whales will face uncertainty in the nearby future. The modern ecosystems are always changing and scientists fear the ocean circulation of currents will likely change with it. The circulation that corners in the whale’s food could change and be spread out in the ocean finding it hard to find the food they normally rely on in a specific place. Graham Slater data support if the climate changes in the route it's going to, then it will shut down the cold water supply and create threats to the whale's