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While the majority of Cetaceans live in marine environments, a small number exclusively reside in brackish water or freshwater. Having a cosmopolitan distribution, they can be found in some rivers and all of earth's oceans and many species inhabit vast ranges where they migrate with the changing of the seasons.
- Where do whales mostly live?
- How many Cetacea are there?
- Where do Humpback whales live?
- What are Cetacea and from where does this name come?
- Where do whales sleep?
- What is the cetacean family?
- Is a seal a cetacean?
- What are the 3 main types of Cetacea?
- Where do whales migrate?
- Can a whale swallow a human?
- How many whales are in the ocean?
- Is an orca a cetacean?
- Do dolphins have pubic hair?
- Is a shark a cetacean?
Where do whales mostly live?
Whales can be found inhabiting all of the world's major oceans, from the Arctic and Antarctic oceans to the tropical waters in and around the equator's center. Depending on species and migration patterns, some whales may be found particularly abundant in some locations while completely absent in others.
How many Cetacea are there?
The International Whaling Commission Scientific Committee currently recognises at least 86 cetacean species. A diverse group, cetaceans and are broadly divided into two groups: 1. Baleen whales (mysticetes) that filter feed large volumes of small prey such as krill, plankton or small fish.
Where do Humpback whales live?
In the northern hemisphere, humpback whales are found in the north Pacific, from South-East Alaska, Prince William Sound, and British Columbia and migrate seasonally to Hawaii, the Gulf of California, Mexico and Costa Rica.
What are Cetacea and from where does this name come?
The word cetacean comes from the Latin word cetus, which was used to refer to any large sea creature, and the Greek word ketos, which was a sea monster or whale. The suffix acea means "of the nature of," so cetacean describes a creature belonging to the family of whales or dolphins.
Where do whales sleep?
Observations of bottlenose dolphins in aquariums and zoos, and of whales and dolphins in the wild, show two basic methods of sleeping: they either rest quietly in the water, vertically or horizontally, or sleep while swimming slowly next to another animal.
What is the cetacean family?
Cetaceans (order Cetacea) are an entirely aquatic order of mammals comprising the whales, the dolphins, and the porpoises. ... Because of their body form, however, cetaceans were once commonly (and incorrectly) grouped with the fishes. This is a list of cetaceans arranged alphabetically by suborder and family.
Is a seal a cetacean?
Marine mammals are classified into four different taxonomic groups: cetaceans (whales, dolphins, and porpoises), pinnipeds (seals, sea lions, and walruses), sirenians (manatees and dugongs), and marine fissipeds (polar bears and sea otters).
What are the 3 main types of Cetacea?
Cetacea (Whales, Dolphins, Porpoises)
Cetacea is the order of mammals that includes whales, dolphins, and porpoises. Cetaceans are found throughout the world's oceans but most species types have specific or common ranges (Table 43-1).
Where do whales migrate?
In general, whales migrate toward the colder poles in the summer and toward the more tropical waters of the equator in the winter.
Can a whale swallow a human?
Whales, in general, are not capable of swallowing a human being and therefore will not eat you. However, there is a species of whales that does pose a legitimate challenge to that general theory: sperm whales.
How many whales are in the ocean?
Present total abundance is over 75,000 whales although not all areas have been surveyed.
Is an orca a cetacean?
Orcas are classified in the Delphinidae family of dolphins and porpoises. All delphinids belong to the Cetacean order within the toothed whale (Odontoceti) suborder.
Do dolphins have pubic hair?
Unlike most mammals, dolphins do not have hair, except for a few hairs around the tip of their rostrum (beak) which they lose shortly before or after birth. The only exception to this is the Boto river dolphin, which has persistent small hairs on the rostrum.
Is a shark a cetacean?
Sharks are part of the elasmobranch family, which includes sharks, rays, skates, and sawfish, while dolphins are part of the cetacean family, which includes toothed and baleen whales, as well as porpoises.
