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An aquatic animal is any animal, whether vertebrate or invertebrate, that lives in a body of water for all or most of its lifetime. [1] Aquatic animals generally conduct gas exchange in water by extracting dissolved oxygen via specialised respiratory organs called gills, through the skin or across enteral mucosae, although some are evolved from ...
The mass of this world ocean is 1.35 × 10 18 metric tons or about 1/4400 of Earth's total mass. The world ocean covers an area of 3.618 × 10 8 km 2 with a mean depth of 3682 m, resulting in an estimated volume of 1.332 × 10 9 km 3. [17] If all of Earth's crustal surface was at the same elevation as a smooth sphere, the depth of the resulting ...
The most common pinniped species kept in captivity is the California sea lion as it is abundant and easy to train. [153] These animals are used to perform tricks and entertain visitors. [154] Other species popularly kept in captivity include the grey seal and harbor seal. Larger animals like walruses and Steller sea lions are much less common ...
Sea snakes: the most abundant of the marine reptiles, there are over 60 different species of sea snakes. They inhabit the tropical and subtropical waters of the Indian and Pacific oceans, though very limited reports of sightings suggest they may be extending into the Atlantic Ocean. Sea snakes are venomous and their bites have been known to be ...
The Haida regarded orcas as the most powerful animals in the ocean, and their mythology tells of orcas living in houses and towns under the sea. According to these stories, they took on human form when submerged, and humans who drowned went to live with them. [ 175 ]
Popular Ocean Names For Babies With Meanings According to Redmond, the top ocean names and their meanings include: Kai — A gender-neutral Hawaiian name meaning “sea”
The family Balaenidae, the right whales, contains two genera and four species. All right whales have no ventral grooves; a distinctive head shape with a strongly arched, narrow rostrum, bowed lower jaw; lower lips that enfold the sides and front of the rostrum; and long, narrow, elastic baleen plates (up to nine times longer than wide) with fine baleen fringes.
Cetaceans (or Cetacea, from the ancient Greek κῆτος, meaning 'sea monster') form an infra-order of marine mammals. In 2020, approximately 86 species of cetaceans had been identified worldwide. [1] Among these species, at least 35 have been sighted in the wider Caribbean region with very widespread distribution and density variations ...