Sealife guideThe bull sharkCarcharhinus leucas
Taxonomy
- Common name: Bull shark, Zambezi shark
- French name: Requin bouledogue, requin du Zambèze
- Spanish name: Tiburón toro
- Scientific name: Carcharhinus leucas (Müller & Henle, 1839)
- Family name: Carcharhinidae
- Order name: Carcharhiniformes
- Class name: Elasmobranchii
Description
The bull shark, also known as the Zambezi shark, is a relatively large species of shark. The bull shark typically measures around 10 feet in length but can reach a maximum size of 13 feet, with females generally being larger than males.

The bull shark (Carcharhinus leucas) is also known as the Zambezi shark © Fiona Ayerst | Dreamstime.com
The bull shark has a stocky, streamlined body with a wide, flat head, giving it a bulldog-like appearance, which is where it gets its name. The dorsal side of its body is grayish to brownish, while its ventral side is whitish.
An adult bull shark weighs around 500 pounds, though some specimens may weigh even more.
Range
Bull sharks inhabit warm tropical, subtropical and temperate waters around the globe and are found in the Atlantic, Indian, and Pacific oceans.
Habitat
As a coastal species, the bull shark prefers shallow waters near shorelines. It frequently ventures into brackish estuaries and swims upriver into deep rivers and streams. It is also a pelagic shark occasionally found far offshore.
Bull sharks are typically encountered at depths around 100 feet but can dive as deep as 525 feet.
Diet
An opportunistic predator, the bull shark feeds on a wide range of prey, including other shark species, marine and freshwater fish, sea turtles, marine mammals such as dolphins, squid, and seabirds. Bull sharks are also known to scavenge on animal carcasses.

The bull shark is a relatively large species of shark © Nicolás Sánchez Biezma | Dreamstime.com
The bull shark is considered highly dangerous due to its aggressiveness, though human attacks are rare despite media attention (Reunion island between 2011 and 2021, Green Cay near Nassau in the Bahamas in 2022, Noumea in New Caledonia in early 2023).
Reproduction
The bull shark is a viviparous species, meaning that, like humans, embryos develop inside the female's body. After a gestation period of around 10 to 12 months, the female gives birth to about a dozen baby sharks, each approximately 2 feet long.
Did you know ?
Bull shark populations are declining primarily due to fishing, accidental bycatch in gillnets and longlines and the degradation of their habitats.

As a coastal species, the bull shark prefers shallow waters near shorelines © Hoatzinexp | Dreamstime.com
The bull shark is unique in its ability to thrive in both saltwater and freshwater environments, making it an euryhaline species.
The bull shark is listed as many other marine species within The IUCN Red List of threatened species. The bull shark appears in the IUCN Red List since 2021 within the category Vulnerable !
Within the same genus

Blacktip shark
(Carcharhinus limbatus)
(Carcharhinus limbatus)

Galapagos shark
(Carcharhinus galapagensis)
(Carcharhinus galapagensis)

Sandbar shark
(Carcharhinus plumbeus)
(Carcharhinus plumbeus)

Grey reef shark
(Carcharhinus amblyrhynchos)
(Carcharhinus amblyrhynchos)

Silvertip shark
(Carcharhinus albimarginatus)
(Carcharhinus albimarginatus)

Oceanic whitetip shark
(Carcharhinus longimanus)
(Carcharhinus longimanus)

Blacktip reef shark
(Carcharhinus melanopterus)
(Carcharhinus melanopterus)

Silky Shark
(Carcharhinus falciformis)
(Carcharhinus falciformis)
Within the same family

Blue shark
(Prionace glauca)
(Prionace glauca)

Lemon shark
(Negaprion brevirostris)
(Negaprion brevirostris)

Whitetip reef shark
(Triaenodon obesus)
(Triaenodon obesus)

Tiger shark
(Galeocerdo cuvier)
(Galeocerdo cuvier)
Explore also

Brownbanded bamboo shark
(Chiloscyllium punctatum)
(Chiloscyllium punctatum)

Zebra bullhead shark
(Heterodontus zebra)
(Heterodontus zebra)

Scalloped hammerhead
(Sphyrna lewini)
(Sphyrna lewini)

Bonnethead shark
(Sphyrna tiburo)
(Sphyrna tiburo)

Basking Shark
(Cetorhinus maximus)
(Cetorhinus maximus)

Japanese wobbegong
(Orectolobus japonicus)
(Orectolobus japonicus)

Zebra shark
(Stegostoma fasciatum)
(Stegostoma fasciatum)

Leafscale gulper shark
(Centrophorus squamosus)
(Centrophorus squamosus)
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