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Horn shark

Heterodontus francisci

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

Ntacyo itwayeNtacyo itwaye abantu. Nta mpamvu yo guhangayika.

Amafi afite ubumara

Amahwa afite ubumaraIrya: Inyama

Akaga ku bantu: YorohejeNko guterwa urubori n'uruyuki cyangwa munsi yaho. Mu by'ukuri ntacyo itwaye abantu.

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

Iba muri

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

Inyanja ya Pasifika, Ikigobe cya Kaliforuniya

Ahabanza

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

Uburebure

1,2 m (3,9 ft)1

Umuvuduko wo hejuru

hafi 20 km/h (12 mph)

Koga, ikigereranyo cy'ugereranyije

Irya iki?

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

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

Uko wayimenya

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

Imbaraga z'ubumara

Amahwa afite ubumara

Amahwa atyaye ni yo atwara ubumara. Kuyikandagira cyangwa kuyifata birababaza.

Iteje akaga kangana iki ku bantu?

Akaga ku bantu: YorohejeNko guterwa urubori n'uruyuki cyangwa munsi yaho. Mu by'ukuri ntacyo itwaye abantu.

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

Ikora iki iyo ifite ubwoba?

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

Niba amahwa yayo akujombye

Shyira igikomere mu mazi ashyushye, ashyushye uko umuntu abyihanganira atiriwe ashya (bigerageze ukoresheje ukuboko kwawe), mu gihe cy'iminota 30 kugeza kuri 90. Shaka ubufasha bwa muganga, cyane cyane ku bya stonefish na stingray.

Buri gihe banza uhamagare nimero y'ubutabazi (112, 000, 911). Izi ni inama rusange z'ubutabazi bw'ibanze, si inama za muganga. Ibanze by'ubutabazi bw'ibanze

Irinde akaga

Ntuzigere ukora, ufata cyangwa ushotora inyamaswa yo mu gasozi, nubwo yaba ntoya, kandi nubwo yasa n'isinziriye cyangwa yapfuye.
Yihe umwanya. Niba uhuye n'imwe, tuza, usubire inyuma buhoro buhoro kandi uyireke yigendere.
Niba amahwa yayo akujombye: tuza, ntunyeganyege, hamagara nimero y'ubutabazi (112, 000, 911) cyangwa ujye ku bitaro vuba. Ibuka uko yasaga, ifoto irafasha.

Ntigushakisha ngo ikugirire nabi. Ikoresha ubumara bwayo kugira ngo ifate ibyo kurya cyangwa yirinde, kandi ikunda cyane kwihisha. Ibindi ku kwirinda

Ni hehe ku isi?

Afurika Aziya Uburayi Amerika y'Amajyaruguru Amerika y'Amajyepfo Ositaraliya na Oseyaniya Inyanja ya Pasifika Ikigobe cya Kaliforuniya

Ingana gute?

Ireshya ite?

ireshya n'injangwe zo mu rugo 2,5 zikurikiranye kuva ku zuru kugeza ku murizoireshya n'imineke 7 ikurikiranyeyakoga uburebure bw'ikidendezi kinini (metero 50) mu masegonda 9

Horn shark ingana ite ugereranyije NAWE?

Ni imibare gusa ikorerwa muri mudasobwa yawe. Nta kintu kibikwa cyangwa cyoherezwa ahandi.

Yihuta gute?

Umwogeyi wo mu mikino Olempike hafi 8 km/h (5 mph)

Horn shark hafi 20 km/h (12 mph)

Dolufine yiruka uko ishoboye kose hafi 35 km/h (22 mph)

bikwiye kumenywa

Ibintu by'ukuri

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

Ku bahanga mu by'ubumara

Izina rya siyansi: Heterodontus francisci
Itsinda: Amafi afite ubumara
Umuryango: Heterodontidae2
Itsinda rinini (order): Heterodontiformes
Imigabane: Inyanja ya Pasifika, Ikigobe cya Kaliforuniya, Inyanja ngari
Abana bato: 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
Uko imeze mu gasozi: Insufficient data (IUCN); population listed as stable on 10 October 20251
Akaga ku bantu: 1 / 5: Yoroheje3

Aho ibintu bivugwa bituruka

Horn shark (Wikipedia (CC BY-SA 4.0))
Heterodontus francisci (iNaturalist): amazina n'ibyiciro.
Venom Wiki: urwego rw'akaga, ingano isanzwe n'ikigereranyo cy'umuvuduko ni ibyacu bwite. Reba uko tubibara: Uko tugena akaga.

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