海豚

出自維基百科，自由嘅百科全書

海豚
化石年代：Early Miocene - Recent

物種分類

界 (Regnum):	Animalia
門 (Phylum):	Chordata
綱 (Classis):	Mammalia
目 (ordo):	Cetacea
亞目 (Subordo):	Odontoceti
科 (familia):	Delphinidae and Platanistoidea Gray, 1821

Genera

睇分類

海豚 (Dolphin) 係鯨目之中，齒鯨亞目嘅動物。華南水上人就叫佢地做烏忌、白忌。

由於中文嘅「海豚」呢個詞有個海字，變左好似只包含海棲海豚。但係喺科學上，「海豚超科」包括唔係海棲嘅海豚。

海洋海豚科 (Delphinidae) 先係指棲嘅海豚。

海豚種類繁多，體型差別都好大。由最細嘅 Maui's Dolphin (1.2m) 至最大，有成10米嘅殺人鯨都有。

[編輯] 智商

海洋海豚科動物智商好高，成年海豚可以高過三歲大嘅人類。

[編輯] 構造

同其他鯨魚比較，海豚有一個長嘴，頭頂又有可以發出超聲波嘅器官，其他鯨就冇（除左 Ziphiidae 科之外）。一般來講，海豚都有三個胃。

[編輯] 分類

太平洋白腹海豚

Commerson's Dolphin

Dusky Dolphin

Killer Whales, also known as Orcas

The Boto, or Amazon River Dolphin

Suborder Odontoceti, toothed whales
- Family Delphinidae, oceanic Dolphins
  - Genus Delphinus
    - Long-Beaked Common Dolphin, Delphinus capensis
    - Short-Beaked Common Dolphin, Delphinus delphis
  - Genus Tursiops
    - Bottlenose Dolphin, Tursiops truncatus
    - Indo-Pacific Bottlenose Dolphin, Tursiops aduncus
  - Genus Lissodelphis
    - Northern Rightwhale Dolphin, Lissodelphis borealis
    - Southern Rightwhale Dolphin, Lissiodelphis peronii
  - Genus Sotalia
    - Tucuxi, Sotalia fluviatilis
  - Genus Sousa
    - Indo-Pacific Hump-backed Dolphin, Sousa chinensis
      - Chinese White Dolphin (the Chinese variant), Sousa chinensis chinensis
    - Atlantic Humpbacked Dolphin, Sousa teuszii
  - Genus Stenella
    - Atlantic Spotted Dolphin, Stenella frontalis
    - Clymene Dolphin, Stenella clymene
    - Pantropical Spotted Dolphin, Stenella attenuata
    - Spinner Dolphin, Stenella longirostris
    - Striped Dolphin, Stenella coeruleoalba
  - Genus Steno
    - Rough-Toothed Dolphin, Steno bredanensis
  - Genus Cephalorynchus
    - Chilean Dolphin, Cephalorhynchus eutropia
    - Commerson's Dolphin, Cephalorhynchus commersonii
    - Heaviside's Dolphin, Cephalorhynchus heavisidii
    - Hector's Dolphin, Cephalorhynchus hectori
  - Genus Grampus
    - Risso's Dolphin, Grampus griseus
  - Genus Lagenodelphis
    - Fraser's Dolphin, Lagenodelphis hosei
  - Genus Lagenorhyncus
    - Atlantic White-Sided Dolphin, Lagenorhynchus acutus
    - Dusky Dolphin, Lagenorhynchus obscurus
    - Hourglass Dolphin, Lagenorhynchus cruciger
    - Pacific White-Sided Dolphin, Lagenorhynchus obliquidens
    - Peale's Dolphin, Lagenorhynchus australis
    - White-Beaked Dolphin, Lagenorhynchus albirostris
  - Genus Orcaella
    - Australian Snubfin Dolphin, Orcaella heinsohni
    - Irrawaddy Dolphin, Orcaella brevirostris
  - Genus Peponocephala
    - Melon-headed Whale, Peponocephala electra
  - Genus Orcinus
    - Killer Whale, Orcinus orca
  - Genus Feresa
    - Pygmy Killer Whale, Feresa attenuata
  - Genus Pseudorca
    - False Killer Whale, Pseudorca crassidens
  - Genus Globicephala
    - Long-finned Pilot Whale, Globicephala melas
    - Short-finned Pilot Whale, Globicephala macrorhynchus
- Family Platanistoidea, River Dolphins
  - Genus Inia
    - Boto (Amazon River Dolphin), Inia geoffrensis
  - Genus Lipotes
    - Chinese River Dolphin (Baiji), Lipotes vexillifer
  - Genus Platanista
    - Ganges River Dolphin, Platanista gangetica
    - Indus River Dolphin, Platanista minor
  - Genus Pontoporia
    - La Plata Dolphin (Franciscana), Pontoporia blainvillei