Cetaceans are an infraorder of aquatic mammals that includes whales, dolphins, and porpoises. Key characteristics are their fully aquatic lifestyle, streamlined body shape, often large size and exclusively carnivorous diet. They propel themselves through the water with powerful up-and-down movement of their tail which ends in a paddle-like fluke, using their flipper-shaped forelimbs to maneuver.
Whales are a widely distributed and diverse group of fully aquatic placental marine mammals. As an informal and colloquial grouping, they correspond to large members of the infraorder Cetacea, i.e. all cetaceans apart from dolphins and porpoises. Dolphins and porpoises may be considered whales from a formal, cladistic perspective. Whales, dolphins and porpoises belong to the order Cetartiodactyla, which consists of even-toed ungulates. Their closest non-cetacean living relatives are the hippopotamuses, from which they and other cetaceans diverged about 54 million years ago. The two parvorders of whales, baleen whales (Mysticeti) and toothed whales (Odontoceti), are thought to have had their last common ancestor around 34 million years ago. Mysticetes include four extant (living) families: Balaenopteridae, Balaenidae, Cetotheriidae, and Eschrichtiidae. Odontocetes include the Monodontidae, Physeteridae, Kogiidae, and Ziphiidae, as well as the six families of dolphins and porpoises which are not considered whales in the informal sense.
The Strait of Juan de Fuca is a body of water about 96 miles long that is the Salish Sea's main outlet to the Pacific Ocean. The international boundary between Canada and the United States runs down the centre of the Strait.
The humpback whale is a species of baleen whale. It is a rorqual and is the only species in the genus Megaptera. Adults range in length from 14–17 m (46–56 ft) and weigh up to 40 metric tons. The humpback has a distinctive body shape, with long pectoral fins and tubercles on its head. It is known for breaching and other distinctive surface behaviors, making it popular with whale watchers. Males produce a complex song typically lasting 4 to 33 minutes.
Whale watching is the practice of observing whales and dolphins (cetaceans) in their natural habitat. Whale watching is mostly a recreational activity, but it can also serve scientific and/or educational purposes. A study prepared for International Fund for Animal Welfare in 2009 estimated that 13 million people went whale watching globally in 2008. Whale watching generates $2.1 billion per annum in tourism revenue worldwide, employing around 13,000 workers. The size and rapid growth of the industry has led to complex and continuing debates with the whaling industry about the best use of whales as a natural resource.
The Makah are an Indigenous people of the Pacific Northwest Coast living in Washington, in the northwestern part of the continental United States. They are enrolled in the federally-recognized Makah Indian Tribe of the Makah Indian Reservation, commonly known as the Makah Tribe.
Humpback dolphins are members of the genus Sousa. These dolphins are characterized by the conspicuous humps and elongated dorsal fins found on the backs of adults of the species. They are found close to shore along the coast of West Africa and right along the coast of the Indian Ocean from South Africa to Australia. Several institutions have made a proposal to divide the Indo-Pacific species into two distinct species: the Indo-Pacific humpback dolphin and the Australian humpback dolphin.
The Atlantic humpback dolphin is a species of humpback dolphin that is found in coastal areas of West Africa.
Cetacean surfacing behaviour is a grouping of movement types that cetaceans make at the water's surface in addition to breathing. Cetaceans have developed and use surface behaviours for many functions such as display, feeding and communication. All regularly observed members of the order Cetacea, including whales, dolphins and porpoises, show a range of surfacing behaviours.
Essex was an American whaling ship from Nantucket, Massachusetts, which was launched in 1799. On 20 November 1820, while at sea in the southern Pacific Ocean under the command of Captain George Pollard Jr., the ship was attacked and sunk by a sperm whale. Thousands of miles from the coast of South America with little food and water, the 20-man crew was forced to make for land in the ship's surviving whaleboats.
The Gulf of Naples, also called the Bay of Naples, is a roughly 15-kilometer-wide (9.3 mi) gulf located along the south-western coast of Italy. It opens to the west into the Mediterranean Sea. It is bordered on the north by the cities of Naples and Pozzuoli, on the east by Mount Vesuvius, and on the south by the Sorrento Peninsula and the main town of the peninsula, Sorrento. The Peninsula separates the Gulf of Naples from the Gulf of Salerno, which includes the Amalfi Coast.
Sapphire Princess is a cruise ship owned by Princess Cruises that entered service in 2004 as the sister ship of Diamond Princess. At the time she was one of the world's largest cruise ships, with a capacity of 2,670 passengers and is the second Gem-class ship built by Princess Cruises. Sapphire Princess was christened on 10 June 2004, in Seattle—the first cruise ship ever to be christened in that port.
Humphrey the Whale is a humpback whale that twice deviated from his Mexico to Alaska migration by entering San Francisco Bay. This behavior is unusual for a humpback whale, and Humphrey attracted wide media attention when entering the bay in both 1985 and 1990. Both of his bay incursions resulted in rescue by the Marine Mammal Center, based in Marin County, California, assisted by the United States Coast Guard and hundreds of other volunteers.
Salt Cay is the second largest of the Turks Islands, one of the two island groups forming of the British territory of the Turks and Caicos Islands in the Caribbean. Its area is 6.74 square kilometres. The size of the district, which also includes some unpopulated islands like Cotton Cay nearby, is 9.1 square kilometres. The population is 108, all in the district capital Balfour Town, established in 1673, on the west coast.
The Hawaiian Islands Humpback Whale National Marine Sanctuary is one of the world's most important whale habitats, hosting thousands of humpbacks each winter.
Whale watching is a popular pastime in Sydney in the winter and spring. There are a number of different migration and whale seasons.
A bait ball, or baitball, occurs when small fish swarm in a tightly packed spherical formation about a common centre. It is a last-ditch defensive measure adopted by small schooling fish when they are threatened by predators. Small schooling fish are eaten by many types of predators, and for this reason they are called bait fish or forage fish.
The sailing ship Regina Maris was originally built as the three-masted topsail schooner Regina in 1908. She was a 144-foot (44-meter), wooden, completely fore-and-aft–rigged sailing ship with three masts. She was re-rigged in 1963 as a 148-foot (45-meter) barquentine. Regina Maris could reach a speed of up to 12 knots, especially on a half-wind course or with a fresh back-stay breeze.
Bubble-net feeding is a feeding behavior engaged in by humpback whales and Bryde's whales. It is one of the few surface feeding behaviors that humpback whales are known to engage in. This type of feeding can be done alone or in groups with as many as twenty whales participating at once. Whales can also perform a similar method of surface feeding called "lunge feeding".
Scott Islands Marine National Wildlife Area is a National Wildlife Area off the northwestern tip of Vancouver Island in the Canadian province of British Columbia. Covering an area of 11,570.65 km2 (4,467.45 sq mi), it is the second largest protected area in British Columbia after Offshore Pacific Seamounts and Vents Closure and is the largest national wildlife area in Canada.
