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Horn shark

Heterodontus francisci

Nezvezita: The scientific name francisci refers to San Francisco, although the shark's range does not reach that far north.1

Isina ngoziHaina ngozi kuvanhu. Hapana chekunetseka nacho.

Hove dzine uturu

Mazonzwa ane uturuInodya: Nyama

Ngozi kuvanhu: Ngozi shomaSenyuchi kubaya kana kushoma. Kazhinji haina ngozi kuvanhu.

The horn shark is a small shark with a blunt head and two tall fins, each with a large spine at the front. It lives along the western coast of North America, from California to the Gulf of California. It spends its days hidden in caves and crevices and hunts at night.1

Inogara mu

Eastern Pacific coast of North America, from Monterey Bay in California south to the Gulf of California1

Gungwa rePacific, Gulf yeCalifornia

Kumba

Adults live in shallower water, usually 2 to 11 m deep, on rocky reefs and in algae beds. Juveniles prefer sandy flats in deeper water, 40 to 150 m deep. In winter, adults move to water deeper than 30 m.1

Kureba

1,2 m (3,9 ft)1

Kumhanya kukuru

kunenge 20 km/h (12 mph)

Kushambira, kufungidzira

Inodya chii?

Adults eat mostly hard-shelled molluscs, sea urchins and crustaceans, which they crush with their flat back teeth. They suck prey out of the sand and rocks, and can lever loose prey free with their body.1

Mufananidzo waHorn shark — Horn shark. Mufananidzo: Chad King / SIMoN NOAA, no known copyright restrictions (public domain). Public domain, iNaturalist.

Maziviro ayo

Short, blunt head with low ridges over the eyes1
Two high dorsal fins, each with large, stout spines at the front1
Brown or grey body with many small dark spots, though older sharks may have no spots1
Yellowish underside1
Usually about 1 m long, and most do not exceed this length1

Simba reuturu

Mazonzwa ane uturu

Mazonzwa akapinza ndiwo anotakura uturu. Kuitsika kana kuibata kunorwadza.

Ine ngozi yakadii kuvanhu?

Ngozi kuvanhu: Ngozi shomaSenyuchi kubaya kana kushoma. Kazhinji haina ngozi kuvanhu.

Horn sharks are harmless unless they are harassed. They are not targeted by commercial or recreational fisheries, though small numbers are caught by accident.1

Inoitei kana yatya?

During the day they stay still in hiding places, but they swim away quickly if disturbed.1

Kana minzwa yayo ikakubaya

Isa ronda mumvura inopisa, inopisa sezvinokwanisa munhu asina kutsva (iedze neruoko rwako), kwemaminitsi 30 kusvika 90. Wana rubatsiro rwechiremba, kunyanya kustonefish nemastingray.

Gara uchitanga wafonera nhamba yechimbichimbi (112, 000, 911). Iri izano rakajairika rerubatsiro rwekutanga, kwete zano rechiremba. Zvakakosha zverubatsiro rwekutanga

Gara wakachengeteka

Usambobata mhuka yesango, kuedza kuitora kana kuinetsa, kunyange iri diki, uye kunyange ichiita seyakarara kana yakafa.
Ipa nzvimbo. Kana ukasangana nayo, dzikama, dzokera shure zvishoma nezvishoma uirege iende nenzira yayo.
Kana minzwa yayo ikakubaya: dzikama, gara wakanyarara, fonera nhamba yechimbichimbi (112, 000, 911) kana kuti enda kuchipatara nokukurumidza. Rangarira kuti yaitaridzika sei, mufananidzo unobatsira.

Haisi kukutsvaga. Inoshandisa uturu hwayo kubata chikafu kana kuzvidzivirira, uye inotonyanya kuda kuhwanda. Zvimwe pamusoro pekugara wakachengeteka

Kupi pasi rose?

Afrika Asia Yuropu Amerika yeKuchamhembe Amerika yeKumaodzanyemba Australia neOceania Gungwa rePacific Gulf yeCalifornia

Yakakura sei?

Yakareba zvakadii?

yakareba sekatsi dzepamba 2,5 kubva pamhuno kusvika kumusweyakareba semabhanana 7 akateedzanainogona kushambira kureba kwedziva guru rekushambira (50 m) mumasekondi 9

Horn shark yakakura sei kana yaenzaniswa NEWE?

Masvomhu chete mubrowser yako. Hapana chinochengetwa kana kutumirwa kupi zvako.

Inomhanya zvakadii?

Mushambiri weOlympics kunenge 8 km/h (5 mph)

Horn shark kunenge 20 km/h (12 mph)

Dolphin ichimhanya nesimba rayo rose kunenge 35 km/h (22 mph)

zvakanaka kuziva

Chokwadi

For its size, the horn shark has the strongest bite of any shark that has been measured.1

To pull prey loose, the shark pushes its head up with a downward stroke of its tail. No other shark has been seen doing this.1

Large horn sharks that eat many sea urchins can have purple-stained teeth and fin spines.1

A Pacific angelshark was filmed trying to swallow a juvenile horn shark, but spat it out because of the spines.1

Horn sharks have only 148 electroreceptors (ampullae of Lorenzini), far fewer than most sharks, which may have over 2,000. They rely mainly on smell to find food.1

A dropped tooth takes about 4 weeks to be replaced.1

Kune nyanzvi dzeuturu

Zita resainzi: Heterodontus francisci
Boka: Hove dzine uturu
Mhuri: Heterodontidae2
Odha: Heterodontiformes
Makondinendi: Gungwa rePacific, Gulf yeCalifornia, Makungwa makuru
Vacheche: They lay eggs. From February to April, females lay up to 24 eggs, two at a time, every 11 to 14 days, and wedge the egg cases into crevices to protect them.1
Iri kurarama sei musango: Insufficient data (IUCN); population listed as stable on 10 October 20251
Ngozi kuvanhu: 1 / 5: Ngozi shoma3

Kwakabva chokwadi

Horn shark (Wikipedia (CC BY-SA 4.0))
Heterodontus francisci (iNaturalist): mazita nekurongwa kwemhuka.
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