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Dolphin
#1
teman-teman, ada yang tahu kenapa lumba-lumba suka loncat dari air ke air?
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#2
Kuark bisa bantu kah ?
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#3
kuark, bisa bantu jawab pertanyaan ini ga? aku bingung
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#4
mungkin lumba lumba ingin bernafas lumba lumbakan mamalia air
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#5
(14-03-2017, 02:30 PM)farizrayyan Wrote: mungkin lumba lumba ingin bernafas lumba lumbakan mamalia air

itu benar Fariz,

Lumba-lumba itu hewan mamalia dan ia bernafas menggunakan paru - paru.
Hal itu membuat lumba-lumba sering muncul ke permukaan laut untuk bernafas.

Temanmu, Dewa.
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#6
so,lumba-lumba napas pakai paru-paru ya?
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#7
yes francesco,dolphin breathing with lungs
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#8
Iya pakai paru paru, makanya lumba lumba suka muncul ke permukaan.
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#9
Dolphin
From Wikipedia, the free encyclopedia
For other uses, see Dolphin (disambiguation).
Dolphins
Dolphins are an informal grouping of the infraorder Cetacea
Tursiops truncatus 01.jpg
Bottlenose dolphin
Information
Classification of
Cetacea

Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Cetartiodactyla
Clade: Cetancodontamorpha
Suborder: Whippomorpha
Infraorder: Cetacea

Families thought
of as dolphins

Delphinidae
Iniidae
†Lipotidae
Platanistidae
Pontoporiidae

v t e

Dolphins are a widely distributed and diverse group of aquatic mammals. They are an informal grouping within the order Cetacea, excluding whales and porpoises, so to zoologists the grouping is paraphyletic. The dolphins comprise the extant families Delphinidae (the oceanic dolphins), Platanistidae (the Indian river dolphins), Iniidae (the new world river dolphins), and Pontoporiidae (the brackish dolphins), and the extinct Lipotidae (baiji or Chinese river dolphin). There are 40 extant species of dolphins. Dolphins, alongside other cetaceans, belong to the clade Cetartiodactyla with even-toed ungulates. Their closest living relatives are the hippopotamuses, having diverged about 40 million years ago.

Dolphins range in size from the 1.7 m (5.6 ft) long and 50 kg (110 lb) Maui's dolphin to the 9.5 m (31 ft) and 10 t (11 short tons) killer whale. Several species exhibit sexual dimorphism, in that the males are larger than females. They have streamlined bodies and two limbs that are modified into flippers. Though not quite as flexible as seals, some dolphins can travel at 55.5 km/h (34.5 mph). Dolphins use their conical shaped teeth to capture fast moving prey. They have well-developed hearing which is adapted for both air and water and is so well developed that some can survive even if they are blind. Some species are well adapted for diving to great depths. They have a layer of fat, or blubber, under the skin to keep warm in the cold water.

Although dolphins are widespread, most species prefer the warmer waters of the tropic zones, but some, like the right whale dolphin, prefer colder climates. Dolphins feed largely on fish and squid, but a few, like the killer whale, feed on large mammals, like seals. Male dolphins typically mate with multiple females every year, but females only mate every two to three years. Calves are typically born in the spring and summer months and females bear all the responsibility for raising them. Mothers of some species fast and nurse their young for a relatively long period of time. Dolphins produce a variety of vocalizations, usually in the form of clicks and whistles.

Dolphins are sometimes hunted in places like Japan, in an activity known as dolphin drive hunting. Besides drive hunting, they also face threats from bycatch, habitat loss, and marine pollution. Dolphins have been depicted in various cultures worldwide. Dolphins occasionally feature in literature and film, as in the film series Free Willy. Dolphins are sometimes kept in captivity and trained to perform tricks, but breeding success has been poor and the animals often die within a few months of capture.[citation needed] The most common dolphins kept are killer whales and bottlenose dolphin
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#10
Kasian ya lumba-lumba di jepang..
mereka diburu..
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