Evolution of cetaceans

Whaling has existed throughout many different cultures through many different eras. It has been, in the past, a largely profitable commercial business for many years that many nations would partake in including Norway, Iceland, Greenland and Japan. It became evident that the continuation of whaling on a commercial scale would soon lead to the extinction of the species and that forms of regulation needed to be created to prevent the loss of these mammals. Through regulation was seen to be needed,…

compelling sets of characteristics they have acquired over their 55-60-million-year evolution including echolocation ability and complex social organisation (Hof, Chanis, & Marino, 2005) have created great belief that this order contains some of the most intelligent animals (Simmonds, 2006), with the suggestion that they are second to humans in terms of general intelligence (Reiss & Marino, 2001). Modern cetacean brains are among the largest of all mammals in terms of both general size and in…

Did you know that dolphins can be pink, or any other color than the normal shiny grey? There is a species of dolphin that differ in many colors, such with pink, some grey and ect. There is many types of endangered dolphin and non- endangered dolphins,especially the river dolphin. River dolphins having different features and specify habits which can leading to good and bad consequences such as endangerment. These dolphins are unique color and friendly,curious toward to people. River dolphins…

Sci. 26, 23-27. Fitzgerald, E., 2006. A bizarre new toothed Mysticete (Cetacea) from Australia and the early evolution of baleen whales. Proc. Biol. Sci. 273(1604), 2955-2963. Fordyce, E. F., 1977. The development of the circum-antarctic current and the evolution of the Mysticeti (mammalian: Cetacea). Palaeogeog. Palaeoclim. Palaeocol. 21, 265-271. Fordyce, R.E., 1980. Whale evolution and Oligocene sourthern ocean environments. Palaeogeog. Palaeoclim. Palaeoecol. 31, 319-336. Geisler, J. H.,…

Evolution says that organisms would change their type by natural selection but this is only happened in microevolution. I will explain what is microevolution? Microevolution is about that the variation among the species. With environment changing, some species would change their type to adapt environment. But no matter how they change, they are still same species. This is microevolution. Evolutionist only can verify microevolution is true. However, can evolutionists prove that macroevolution is…

Dolphin: Spy in the Pod Come discover the amazing world of dolphins in this factual film by Robert Pilley, Mathew Gordon, John Downer and narrated by David Tennant. See up close footage of several different species of dolphins behavior and the unique cameras used to capture them. Would you like to know about how dolphins jump, how long a baby stay with its mother. How about how they communicate, mating rituals, and hunt. Join the nautilus, spy turtle, spy dolphin, spy tuna, and spy ray on their…

Common Bottlenose Dolphin: Anatomy: Common Bottlenose Dolphins are marine animals that live their whole life in the water. Their blowhole is on top of their head. Their ears are close to their eyes. They have 2 fins; a set of fins called Pectoral Fins that helps them swim. The other one is a single fin on top of their head further away from the blowhole called the Dorsal Fin that helps them keep stable against the water currents. They have a small patch of skin on their stomach that is…

One culture that has been affected by its physical location is the Minoan Culture of the Aegean islands. This culture was located on the island of Crete during the time period of 3650 BC- 1420 BC. It is clear to see the major influences of this cultures by examining not only the artwork, but the Palace of Knossos. In this essay I aim to display how the sea influenced Minoan culture by using Minoan art. The Palace of Knossos was home to King Minos of the Minoans. In this palace we can see…

The Slaughter of Dolphins People think that dolphins are the friendliest creatures in the ocean and no one would hurt them or even kill them. Well they are actually being killed right now. The dolphin are being slaughter in a place called Taiji, Japan. Taiji is a small town with a big secret. If you didn’t look closely, you would think they love dolphins and whales (“The Cove”). The capture of dolphins and of the killing of dolphins all started when the show called “Flipper” came out in 1964.…

Most likely when we think about the differences between dolphins and humans is legs and tail fins, of course the color too. Well, duh! Who doesn’t already know about the differences? Despite how different us humans are from dolphins, we have an incredible amount of similarities. We may have some obvious differences, but we have more things in common than we realize. Yes, dolphins and humans clearly have a few major differences. The tail fin, dorsal fin, pectoral flippers, color, and the…