Cetaceans, such as dolphins, porpoises, and whales, can be seriously affected by entanglement in fishing nets and lines, or direct capture by hooks or in trawl nets.

Cetaceans do not leave tracks that can be followed, nor do they leave dung that can tell important information about their diet.

Cetaceans are nearly hairless, and are insulated from the cooler water they inhabit by a thick layer of blubber.

Cetaceans make up for their generally poor vision ( with the exception of the dolphin ) with excellent hearing.

In addition, the Bryde's whale is covered by the Memorandum of Understanding for the Conservation of Cetaceans and Their Habitats in the Pacific Islands Region ( Pacific Cetaceans MOU ).

* http :// www. pacificcetaceans. org / Official webpage of the Memorandum of Understanding for the Conservation of Cetaceans and Their Habitats in the Pacific Islands Region

* Dolphins, Whales and Porpoises: 2002-2010 Conservation Action Plan for the World's Cetaceans, Reeves, Smith, Crespo and Notarbartolo di Sciara.

The Indo-Pacific humpback dolphin is also covered by the Memorandum of Understanding for the Conservation of Cetaceans and Their Habitats in the Pacific Islands Region ( Pacific Cetaceans MoU ).

* Official webpage of the Memorandum of Understanding for the Conservation of Cetaceans and Their Habitats in the Pacific Islands Region

In addition, the species is covered by the Memorandum of Understanding for the Conservation of Cetaceans and Their Habitats in the Pacific Islands Region ( Pacific Cetaceans MOU ) and the Agreement on the Conservation of Cetaceans in the Black Sea Mediterranean Sea and Contiguous Atlantic Area ( ACCOBAMS )

* Official webpage of the Memorandum of Understanding for the Conservation of Cetaceans and Their Habitats in the Pacific Islands Region

In addition, the Antarctic minke whale is covered by the Memorandum of Understanding for the Conservation of Cetaceans and Their Habitats in the Pacific Islands Region.

* Official webpage of the Memorandum of Understanding for the Conservation of Cetaceans and Their Habitats in the Pacific Islands Region

In addition, Risso's dolphin is covered by the Agreement on the Conservation of Small Cetaceans of the Baltic, North East Atlantic, Irish and North Seas ( ASCOBANS ), the Agreement on the Conservation of Cetaceans in the Black Sea, Mediterranean Sea and Contiguous Atlantic Area ( ACCOBAMS ), the Memorandum of Understanding for the Conservation of Cetaceans and Their Habitats in the Pacific Islands Region ( Pacific Cetaceans MoU ) and the Memorandum of Understanding Concerning the Conservation of the Manatee and Small Cetaceans of Western Africa and Macaronesia ( Western African Aquatic Mammals MoU ).

* Official webpage of the Memorandum of Understanding for the Conservation of Cetaceans and Their Habitats in the Pacific Islands Region

The Pygmy right whale is also covered by Memorandum of Understanding for the Conservation of Cetaceans and Their Habitats in the Pacific Islands Region ( Pacific Cetaceans MOU ).

* Official webpage of the Memorandum of Understanding for the Conservation of Cetaceans and Their Habitats in the Pacific Islands Region

In addition, Andrews ’ beaked whale is covered by the Memorandum of Understanding for the Conservation of Cetaceans and Their Habitats in the Pacific Islands Region ( Pacific Cetaceans MOU )

Cetaceans also obey Kleiber's law, which states that mass and metabolic rate are inversely related, i. e., larger animals consume less oxygen than smaller animals per unit mass.

Cetaceans: The most abundant cetaceans include Orcas, Harbor and Dall's Porpoises.

Cetaceans that spend most of their time in shallow, coastal waters almost never mass strand.

At Lystrup Enge, Yderhede and other places the bones of Cetaceans and Pinnipeds have been found ; specifically, of killer whales, the white-beaked dolphin and the bottlenose dolphin among the Cetaceans.

With colonisation, islanders used rafts or " cayucos " ( canoe-like boats ), and hunted humpback whales, whale calves, and other Cetaceans with harpoons near to the island.

Cetaceans are the mammals best adapted to aquatic life.

Cetaceans are not the only marine mammals to reach unprecedented size.

For articles about whales see: Category: Cetaceans.

* The Sounding of the Whale: Science and Cetaceans in the Twentieth Century by D. Graham Burnett.

In addition, the White-beaked dolphin is covered by the Agreement on the Conservation of Small Cetaceans of the Baltic, North East Atlantic, Irish and North Seas ( ASCOBANS ).

Sowerby ’ s beaked whale is covered by the Agreement on the Conservation of Small Cetaceans of the Baltic, North East Atlantic, Irish and North Seas ( ASCOBANS ) and the Agreement on the Conservation of Cetaceans in the Black Sea, Mediterranean Sea and Contiguous Atlantic Area ( ACCOBAMS ).

The species is further included in the Memorandum of Understanding Concerning the Conservation of the Manatee and Small Cetaceans of Western Africa and Macaronesia ( Western African Aquatic Mammals MoU )

The species is further included in the Memorandum of Understanding Concerning the Conservation of the Manatee and Small Cetaceans of Western Africa and Macaronesia ( Western African Aquatic Mammals MoU ) and the Memorandum of Understanding for the Conservation of Cetaceans and Their Habitats in the Pacific Islands Region ( Pacific Cetaceans MoU )

The species is further included in the Memorandum of Understanding Concerning the Conservation of the Manatee and Small Cetaceans of Western Africa and Macaronesia ( Western African Aquatic Mammals MoU )

The species is further included in the Memorandum of Understanding Concerning the Conservation of the Manatee and Small Cetaceans of Western Africa and Macaronesia ( Western African Aquatic Mammals MoU ) and the Memorandum of Understanding for the Conservation of Cetaceans and Their Habitats in the Pacific Islands Region ( Pacific Cetaceans MoU )

In addition, the species is also covered by the Agreement on the Conservation of Small Cetaceans of the Baltic, North East Atlantic, Irish and North Seas ( ASCOBANS ) and the Agreement on the Conservation of Cetaceans in the Black Sea, Mediterranean Sea and Contiguous Atlantic Area ( ACCOBAMS ).

In addition, the species is also covered by the Agreement on the Conservation of Small Cetaceans of the Baltic, North East Atlantic, Irish and North Seas ( ASCOBANS ) and the Agreement on the Conservation of Cetaceans in the Black Sea, Mediterranean Sea and Contiguous Atlantic Area ( ACCOBAMS ).

The species is further included in the Memorandum of Understanding Concerning the Conservation of the Manatee and Small Cetaceans of Western Africa and Macaronesia ( Western African Aquatic Mammals MoU ) and the Memorandum of Understanding for the Conservation of Cetaceans and Their Habitats in the Pacific Islands Region ( Pacific Cetaceans MoU )

The species is further included in the Memorandum of Understanding Concerning the Conservation of the Manatee and Small Cetaceans of Western Africa and Macaronesia ( Western African Aquatic Mammals MoU ) and the Memorandum of Understanding for the Conservation of Cetaceans and Their Habitats in the Pacific Islands Region ( Pacific Cetaceans MoU )

The species is further included in the Memorandum of Understanding Concerning the Conservation of the Manatee and Small Cetaceans of Western Africa and Macaronesia ( Western African Aquatic Mammals MoU ) and the Memorandum of Understanding for the Conservation of Cetaceans and Their Habitats in the Pacific Islands Region ( Pacific Cetaceans MoU )

Cetaceans and pinnipeds that prolong apnea must optimize the size and use of their oxygen stores, and they must deal with the accumulation of lactic acid due to anaerobic metabolism.

Cetaceans breathe air.

Cetaceans ' blowholes have evolved to a position at the top of the head, simplifying breathing in sometimes rough seas.

Cetaceans also use sound to communicate, whether it be groans, moans, whistles, clicks or the complex ' singing ' of the humpback whale.

* Cetaceans include toothed whales ( Suborder Odontoceti ), such as the Sperm Whale, dolphins, and porpoises such as the Dall's porpoise.

Cetaceans also include baleen whales ( Suborder Mysticeti ), such as the Gray Whale, Humpback Whale, and Blue Whale.

The beaked whales are the second-largest family of Cetaceans ( after the dolphins.

Some examples of animal taxa include Radiates and Cetaceans as well as more well known taxa such as fish and birds.

Cetaceans such as bottlenose dolphins and migrating humpback whales are occasionally seen.

* Whales & Dolphins Guide to the Biology and Behaviour of Cetaceans, Maurizio Wurtz and Nadia Repetto.

* Sensory Abilities of Cetaceans.