Porpoises Flashcards

basic poirpose information

1
Q

what grouping do porpoises belong to

A

cetaceans and toothed whales (odontocetes)

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2
Q

how many species of porpoise are known

A

7 species

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3
Q

list the 7 species of porpoise

A

harbour, vaquita, burmeister’s, spectacled, indo-pacific finless, narrow-ridged finless, dall’s,

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4
Q

what is the most endangered cetacean in the world

A

vaquita porpoise

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5
Q

where are vaquita located

A

off the coast of Baja California, Mexico

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6
Q

what is the smallest porpoise species

A

vaquita

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7
Q

what is the largest porpoise species

A

dall’s porpoise

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8
Q

what is the general size of porpoises

A

less than 8 feet

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9
Q

locations of porpoise populations

A

coastal, offshore, some river habitats

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10
Q

describe the head shape of porpoises

A

blunt heads with no distinctive beaks

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11
Q

describe the dorsal fins of porpoises

A

small, triangular dorsal fins excluding the two finless porpoise species

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12
Q

describe the teeth of porpoises

A

small, spade-shaped (flat)

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13
Q

describe social habits of porpoises

A

smaller social groups, shy, generally not interactive with humans

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14
Q

average lifespan of porpoise

A

20 years

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15
Q

when do porpoises reach maturity

A

between 3-8 years

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