wonderful in the sea
The sea is the interconnected system of all the Earth's oceanic waters, including the Atlantic, Pacific, Indian, Southern and Arctic Oceans.[1] However, the word "sea" can also be used for many specific, much smaller bodies of seawater, such as the North Sea or the Red Sea. There is no sharp distinction between seas and oceans, though generally seas are smaller, and are often partly (as marginal seas or particularly as mediterranean seas) or wholly (as inland seas) bordered by land.[2] However, the Sargasso Sea has no coastline and lies within a circular current, the North Atlantic Gyre.[3](p90) Seas are generally larger than lakes and contain salt water, but the Sea of Galilee is a freshwater lake.[4][a] The United Nations Convention on the Law of the Sea states that all of the ocean is "sea".[8][9][b]
Physical science
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The journey of the penguin
For other uses, see Penguin (disambiguation).
Penguins
Temporal range: Late Danian-Recent, 62–0 Ma
PreꞒꞒOSDCPTJKPgN
Possible Cretaceous origin according to molecular data[1][2][3]
Penguins collage.png
Penguin species of different genera; from top-left, clockwise: Emperor penguin (Aptenodytes forsteri), snares penguin (Eudyptes robustus), little penguin (Eudyptula minor), yellow-eyed penguin (Megadyptes antipodes), gentoo penguin (Pygoscelis papua), African penguin (Spheniscus demersus)
Scientific classificatione
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Clade: Austrodyptornithes
Order: Sphenisciformes
Sharpe, 1891
Family: Spheniscidae
Bonaparte, 1831
Modern genera
Aptenodytes
Eudyptes
Eudyptula
Megadyptes
Pygoscelis
Spheniscus
For prehistoric genera, see Systematics
Penguin range.png
Breeding range of penguins, all species (aqua); some species have wider seasonal migration ranges
Penguins (order Sphenisciformes /sfɪˈnɪsɪfɔːrmiːz/, family Spheniscidae /sfɪˈnɪsɪdiː/) are a group of aquatic flightless birds. They live almost exclusively in the Southern Hemisphere, with only one species, the Galápagos penguin, found north of the Equator. Highly adapted for life in the water, penguins have countershaded dark and white plumage and flippers for swimming. Most penguins feed on krill, fish, squid and other forms of sea life which they catch while swimming underwater. They spend roughly half of their lives on land and the other half in the sea.
Although almost all penguin species are native to the Southern Hemisphere, they are not found only in cold climates, such as Antarctica. In fact, only a few species of penguin live so far south. Several species are found in the temperate zone, but one species, the Galápagos penguin, lives near the Equator.
The largest living species is the emperor penguin (Aptenodytes forsteri):[4] on average, adults are about 1.1 m (3 ft 7 in) tall and weigh 35 kg (77 lb). The smallest penguin species is the little blue penguin (Eudyptula minor), also known as the fairy penguin, which stands around 33 cm (13 in) tall and weighs 1 kg (2.2 lb).[5] Among extant penguins, larger penguins inhabit colder regions, while smaller penguins are generally found in temperate or even tropical climates. Some prehistoric species attained enormous sizes, becoming as tall or as heavy as an adult human. These were not restricted to Antarctic regions; on the contrary, subantarctic regions harboured high diversity, and at least one giant penguin occurred in a region around 2,000 km south of the Equator 35 mya, in a climate decidedly warmer than today.[which?]
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The wonder of the sea
Turtle Beach is a public beach located on South Siesta Key in Sarasota, Florida. Turtle Beach is known for the large number of sea turtles that nest on the shore.[1] It has roughly 2,600 feet of beach front that is accessible to the public as well as camping, picnic areas,[1][2] and a children play area. There are two boat ramps to launch boats[3] on the lagoon side of the property.[4] The beach has had problems with erosion.[5] Sharks have been present in the ocean at the beach.[6
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