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Porpoise
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Porpoises
are marine cetacean mammals related to the whales
and the dolphin. They are not dolphins even though
many people use the term interchangeably. The porpoise
is smaller and stouter than dolphins with small,
rounded heads and blunt jaws instead of beaks. Porpoises
do not have the round bulbous bump on the head that
dolphins do. Porposies can be found in oceans, shallow
waters and estuaries in the Indian, Pacific, and
Atlantic Oceans, where they feed on squid, octopus,
shrimp and fish. They are the smallest of the cetaceans,
ranging from 5 feet to 8 feet. Porpoises have a very
refined system of echolocation which enables them
to navigate and hunt for food in restricted visibility.
There are six different species of porpoise: Burmeister's
porpoise, Phocoena spinipinnis; Dall's porpoise,
Phocoenoides dalli; Finless porpoise, Neophocaena
phocaenoides; Harbor porpoise, Phocoena phocoena;
Spectacled porpoise, Australophocaena dioptrica;
and Vaquita Porpoise, Phocoena sinus.
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Picture of finless porpoise,
Neophocaena phocaenoides, skull, note the short broad
beak, Hong Kong
Picture #: 069460 |
Image of finless porpoise,
Neophocaena phocaenoides, Indo-Pacific Ocean
Picture #: 015723 |
Stock photo of vaquita,
Phocoena sinus, very young individual still showing
its fetal folds, endemic to the northernmost portion
of the Sea of Cortez, Mexico, East Pacific
Picture #: 094350 |
Picture of finless porpoise,
Neophocaena phocaenoides, Indo-Pacific Ocean
Picture #: 015726 |
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Photo of adult Dall's
porpoise, Phocoenoides dalli, bow-riding in Chatham
Strait, Southeast Alaska. This porpoise often
casts a roostertail of water in front of its' body
when it surfaces to breath. Dall's porpoise are among
the fastest cetaceans in the world
Picture #: 057617 |
Stock photo of adult
Dall's porpoise, Phocoenoides
dalli, bow-riding in
Chatham Strait, Southeast Alaska. This porpoise often
casts a roostertail of water in front of its' body
when it surfaces to breath. Dall's porpoise are among
the fastest cetaceans in the world
Picture #: 055841 |
Image of Dall's porpoise,
Phocoenoides dalli, Boundary Pass, Canada/U.S.A.
border, Pacific
Picture #: 010659 |
Picture of adult Dall's
porpoise, Phocoenoides dalli, surfacing, note blow
detail, in Southeast Alaska. Dall's porpoise
is one of the fastest cetaceans in the world
Picture #: 006565 |
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Picture of Dall's porpoise, Phocoenoides
dalli, Monterey Bay, Pacific Ocean
Picture #: 075480 |
Image of finless porpoise,
Neophocaena phocaenoides, Indo-Pacific Ocean
Picture #: 015747 |
Image of Dall's porpoises,
mother and calf killed in driftnet, Phocoenoides
dalli, South of the Aluetian Islands, Pacific Ocean
Picture #: 075479 |
Picture of finless porpoise,
Neophocaena phocaenoides, Indo-Pacific Ocean
Picture #: 015744 |
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Picture of adult
Dall's porpoises, Phocoenoides
dalli, bow riding
in Southeast Alaska. Dall's porpoise is one
of the fastest cetaceans in the world
Picture #: 055831 |
Image of finless porpoise,
Neophocaena phocaenoides, Indo-Pacific Ocean
Picture #: 015736 |
Stock photo of finless
porpoise, Neophocaena phocaenoides, Hong Kong
Picture #: 092227 |
Picture of vaquita,
Phocoena sinus, detail of the spade-shaped teeth,
characteristic of the true propoises, endemic to
the northernmost portion of the Sea of Cortez, Mexico,
East Pacific Ocean.
Picture #: 094343 |
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Picture of vaquita,
Phocoena sinus, endemic to the northernmost portion
of the Sea of Cortez, Mexico, East Pacific Ocean.
Picture #: 094346 |
Image of finless
porpoise, Neophocaena phocaenoides, Hong Kong
Picture #: 092226 |
Stock photo of Burmeister's
porpoise, Phocoena spinipinnis, killed in fishery,
Peru, Pacific Ocean
Picture #: 010654 |
Picture of Image of
finless porpoise, Neophocaena
phocaenoides, Indo-Pacific
Ocean
Picture #: 015727 |
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