The decline of the dinosaurs brought the evolution of a new marine order know as Cetacea. Present day species of whales and dolphins began to emerge 10 million years ago. Of these 86 species that exist today, whales make up the majority of both the Odonotocetes and Mysticetes. These creatures are amongst the largest in the world and display an equally unique way of communicating with one another. Both baleen and toothed whales communicate utilizing sounds yet neither possess an external ear.
Porpoises, belonging to the genus Phocaenidae, are close relatives of dolphins. One of their unique characteristics that differ from other species of the same order is that they can produce clicks for echolocation at frequencies inaudible to humans. The reason for this is majorly influenced by the Orca, also known as the killer whale. Also, while at first glance dolphins and porpoises look of the same species, they actually are classified into two different geni. Part of this separate taxonomy is
groups of 200 to 10,000 individuals. This happens sometimes during migrations. The scientific name for a Beluga whale Delphinapterus leucas (bing). The Beluga whales are classified as follows: Kingdom Animalia, Phylum Chordata, Class Mammalia, Order Cetacea, Family Monodontidae, Genus Delphinapterus, Species leucas. ) Beluga whales are one of the prettiest whales that scientist have every seen. One thing that most people don’t know about Belugas whales are that they eat 2.5% to 3% of their own body weight
The purpose of this paper is to distinguish the differences and similarities of Dolphins and Porpoises. "The term porpoise, whale and dolphin are often used interchangeably, but size (specifically length) is the criterion anatomists have generally used to apply the common name whale" (Dudzinski and Frohoff 2008). The paper will further seeks to identify unique characteristics that dolphins and porpoises possess and the manner in which they utilized these unique abilities to obtain food and survive
The killer whales are mammals. They have two common names the killer whale and the ocra. Killer whales inhabit most of the world’s oceans, going from warm waters to freezing cold waters (Monterey Aquarium). Not all of the killer whales are known because their are so many. Orca’s are very social and travel in pods. The whales usually stay with the same pods of whales as they travel. Ocras usually migrate with their food, and they also have seasonal migrations. (Sea World). The food they eat is
The bottlenose dolphin, scientifically known as the Tursiops truncates, belongs to the kingdom, Animalia and the phylum, Chordata. The dolphin also falls under the Mammalia class. They are specifically classified in the order, Cetacea and the family, Delphinidae. This dolphin is most closely related to the Indo-Pacific bottlenose dolphin, or the Tursiops aduncus. This cousin of the bottlenose dolphin was originally grouped as the same species as the common bottlenose. However, now these dolphins
Its hard to believe that the large elegant marine mammals we know today, were once land dwelling creatures. Whales have been forever evolving just like humans. What is evolution? Evolution is the process by which different kinds of living organisms are thought to have developed and diversified from earlier forms during the history of the earth (Mueller, Aug. 2010). Every living organism has evolved at one point or another. Whales have evolved from a land animal into an animal that lives only in the
Dolphins Dolphins are mammals closely related to whales and porpoises. Dolphins have a powerful and streamlined body. They are found in all seas and oceans. Dolphins can be told apart from porpoises by their nose, which is beaklike, and also their conical teeth. Porpoises have a flatter nose, sharper teeth, and a more solid body. There are 32 known species of dolphins. The bottle-nosed dolphin is often the species used in aquatic shows. The common dolphin inspired many Mediterranean folk lores
Dolphins are highly intelligent mammals that encompass the world. A part of the Odontoceti a parvorder of the infraorder Cetacea, they are related to orcas, beluga and pilot whales. A majority of dolphins live in salt water and are considered oceanic dolphins which tend to congregate in shallow waters of the continental shelf but, there are a handful of species that have been known to thrive in freshwater and can be spotted in rivers. Being carnivores, they can be spotted hunting for squid and various
feet (1 to 4 meters). Although whales spend their lives in the sea, they are, like humans, warm-blooded mammals. After a baby whale is born, it nurses on its mother's milk, just like the young of land mammals. Whales are members of the order Cetacea, along with dolphins, porpoises, and the narwhal. There are two basic types of living cetaceans: baleen, or whalebone, whales of the scientific suborder Mysticeti; and toothed whales of the suborder Odontoceti. General Characteristics Whales
Humpback Whales Humpback whales are amazing mammals and they go through a lot of extraordinary things to be able to survive. There are many whales in the ocean, but the whales that are in the Hawaiian culture areas have many difficulties and most people don't understand why. Humpback whales have the scientific name of Megaptera Novaeangliae, that species of baleen whale is one of the larger species, and adults range in length from twelve to sixteen metres which is thirty to fifty-two feet. They
People generally think that the largest animals ever to live on earth were the dinosaurs, but even those giants were not as huge as the blue whalethat is still alive today. Named for its blue-gray color, this huge cetacean may grow to be roughly 30.5 m (100 ft) long and weigh more that 108,000 kg (120 tons). Its close relatives include the smaller fin, humpback, sei, Bryde's, and minke whales. The blue whale and its relatives are called baleen whales because they have a feeding structure known
Analysis of Dolphins Aristotle once wrote, “The voice of the dolphin in the air is like that of the human in that they can pronounce vowels and combinations of vowels, but have difficulties with the constants.” The dolphin is one amazing creature. Dolphins, whales and porpoises are all related. I am going to talk about all aspects off the dolphin from evolution and vocalization to behavior and intelligence. Dolphin fossils have been found dating back to 45-50 million years ago, which was during
We have always wanted our benefit and everything for ourselves, we have never thought about the other living marine or land organism and we don’t even care if it comes to abiotic appliances, that’s not the point what I am saying or rather parts of the earth are trying to tell the others to help the more vital and weaker who are also decreasing in numbers rapidly compared to our 7.22 billion humans. In the further articles you will see they information and the threats to the Sei whale, the Sei Whale
What is a dolphin? A dolphin is an aquatic mammal. There are a various amount of species of dolphins,who eat a large variety of food,and can live in several different environments. There are thirty-two different species of oceanic dolphins and five different species of river dolphins. River dolphins live in Ganges River, Chinese River, Amazon River, and the Indus River ("Dolphins." -and-more.com). There are only four species of river dolphin alive because one is extinct. These dolphins don't only
Demand, revenue, cost, and profit are the driving forces behind any economy. This notion is taught to most students in grade school and will carry on through the rest of their lives helping them make the most educated decisions they can. Logically, the greater the demand for something, the greater the profit will be. Whaling used to be a sizable part of the economy, due to the innumerable uses of a whale’s by-products, and consequently, there was a substantial profit margin. Presently, the largest
The Preservation of Laguna San Ignacio In the 19th century the Pacific Gray Whale was nearly hunted to extinction when their products were in high demand. At the turn of the century, there existed only a few thousand of these precious whales. Soon after, the whales were placed onto the endangered species list where they were under the heavy protection of numerous national laws and international treaties. In 1993 the number of Gray Whales climbed to a miraculous 21,000 and by the end of 1994 the
“Dolphins often display a playful attitude which makes them popular in human culture” (Science World Kids.) In this paper I will talk about what dolphins eat, how they sleep, what their environment is, and other interesting facts. Species of dolphins Dolphins are a group of aquatic mammals called cetaceans. They are mammals because they are warm-blooded and they give birth to their young. The word “cetaceans” means celus in Latin and kelos in Greek both of which mean large sea animal (or creature
Black Fish Have you ever been to Seaworld? Well youve seen a whale, it’s exciting isn’t it. It’s so cool to see a whale up close but, did you know that those whales may seem like they have the “good life; they don’t there kept locked up in a concrete pool, say no to whales in captivity and stop the suffering. Did you know that while you are there watching the cool exciting whales, you aren’t thinking about where do they get them from, or where do they sleep how do they live are they happy? Well
Blue Whale On this endanger earth, there are numerous of endangered species. Blue whale are specified as the largest animal that lived on earth. It is one of the endanger species listed on the Wildlife Services website. Their size are around 82 to 105 feet long. To further discuss about this typical endangered species I will research and analyze on this paper. Blue whale (Balaenoptera musculus) is an endangered species, and it can be found in Alaska, California and Massachusetts. Blue whale is a