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Inombolo 1261 kwezi-1 402

Horn shark

Heterodontus francisci

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

AsinangoziAsinangozi ebantwini. Akukho nto yokukhathazeka ngayo.

Iintlanzi ezinetyhefu

Amava anetyhefuSitya: Inyama

Ingozi ebantwini: KuthambileNjengokuhlatywa yinyosi okanye ngaphantsi. Phantse asinangozi ebantwini.

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

Sihlala

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

uLwandlekazi lwePasifiki, iGulf yaseCalifornia

Ekhaya

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

Ubude

1,2 m (3,9 ft)1

Esona santya siphezulu

malunga ne-20 km/h (12 mph)

Ukuqubha, uqikelelo nje

Sitya ntoni?

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

Indlela yokusiqaphela

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

Amandla etyhefu yokuluma nokuhlaba

Amava anetyhefu

Amava abukhali aphethe ityhefu. Ukusinyathela okanye ukusibamba kubuhlungu.

Siyingozi kangakanani ebantwini?

Ingozi ebantwini: KuthambileNjengokuhlatywa yinyosi okanye ngaphantsi. Phantse asinangozi ebantwini.

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

Senza ntoni xa soyika?

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

Ukuba amava aso ayakugwaza

Faka inxeba emanzini ashushu, ashushu kangangoko umntu angakwazi ukunyamezela ngaphandle kokutshiswa (wavavanye ngesandla sakho), imizuzu engama-30 ukuya kwengama-90. Fumana uncedo lwezonyango, ingakumbi kwii-stonefish nakwii-stingray.

Soloko utsalela inombolo kaxakeka kuqala (112, 000, 911). Esi sisikhokelo soncedo lokuqala ngokubanzi, asilocebiso lwezonyango. Iziseko zoncedo lokuqala

Hlala ukhuselekile

Ungaze uchukumise, ubambe okanye uqhule isilwanyana sasendle, nokuba sincinci, kwaye nokuba sibonakala silele okanye sifile.
Sinike indawo. Ukuba udibana naso, hlala uzolile, buyela umva kancinci kwaye usiyeke sihambe ngendlela yaso.
Ukuba amava aso ayakugwaza: hlala uzolile, musa ukushukuma, tsalela inombolo kaxakeka (112, 000, 911) okanye uye esibhedlele ngokukhawuleza. Khumbula ukuba sasikhangeleka njani, ifoto iyanceda.

Asikuzingeli. Sisebenzisa ityhefu yaso ukubamba ukutya okanye ukuzikhusela, kwaye singakhetha ukuzimela. Okungakumbi malunga nokuhlala ukhuselekile

Phi emhlabeni?

IAfrika IAsiya IYurophu uMntla Melika uMzantsi Melika IOstreliya neOceania uLwandlekazi lwePasifiki iGulf yaseCalifornia

Sikhulu kangakanani?

Side kangakanani?

ubude obulingana neekati zasekhaya eziyi-2,5 ukusuka empumlweni ukuya emsileniubude obulingana neebhanana eziyi-7 zilandelelanasingaqubha ubude bechibi elikhulu lokuqubha (50 m) ngemizuzwana eyi-9

U-Horn shark mkhulu kangakanani xa uthelekisa NAWE?

Zizibalo nje kwibhrawuza yakho. Akukho nto igcinwayo okanye ithunyelwa naphi na.

Sikhawuleza kangakanani?

Umqubhi weOlimpiki malunga ne-8 km/h (5 mph)

Horn shark malunga ne-20 km/h (12 mph)

Ihlengesi liqubha ngamandla alo onke malunga ne-35 km/h (22 mph)

kufanelekile ukwazi

Iinyaniso

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

Kwiingcali zetyhefu

Igama lenzululwazi: Heterodontus francisci
Iqela: Iintlanzi ezinetyhefu
Usapho: Heterodontidae2
Ucwangco: Heterodontiformes
Amazwekazi: uLwandlekazi lwePasifiki, iGulf yaseCalifornia, Iilwandlekazi
Iintsana: 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
Imeko yaso endle: Insufficient data (IUCN); population listed as stable on 10 October 20251
Ingozi ebantwini: 1 / 5: Kuthambile3

Apho iinyaniso zivela khona

Horn shark (Wikipedia (CC BY-SA 4.0))
Heterodontus francisci (iNaturalist): amagama nokuhlelwa.
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