B is for Black Tip Reef Shark

Blacktip reef shark swimming through shallow reef water, showing its distinctive dark-tipped fins.

While you certainly won’t run into Jaws when you’re paddling at the East Sands beach, St Andrews Aquarium does have its very own shark-in-residence. Our black-tip reef shark is still a baby, and rather small, but in the wild, these toothy Carcharhinidae can grow up to 1.6 metres in length. Bluish-grey in colour, black-tip sharks are easily spotted for their dorsal fins, which look a little like they’ve been dipped in ink and the white stripe which sears down their flanks.

These apex predators hail from the cosy coral reefs of the Indian and Pacific Oceans, but in recent years they have also populated the eastern Mediterranean Sea by way of the man-made Suez Canal. They like to hang out in the shallow waters of bays, estuaries and river mouths. Sadly, this has made them vulnerable to human development, and in some countries, they are captured and made into shark fin soup.

Speaking of food, reef sharks aren’t fussy eaters. They are happy devour a wide range of menu offerings, from the colourful, crunchy mantis shrimp to squelchy octopus and squid. They’re also great team players, working together to drive prey like mullet, wrasse and grouper towards the shoreline for an all-you-can-eat fish buffet. During a feeding frenzy, they show little regard for etiquette, and can even breach the surface of the water as they enthusiastically thrash and chomp their prey.

Although the reef shark has quite limited vision, it has other means of sensing its prey. Sharks are the most electrically sensitive of all animals, with electroreceptor cells on their snouts which help with communication, navigation, and feeding. As if this wasn’t enough of a talent, in very rare cases, female reef sharks have been discovered to fertilise their own eggs, suggesting they might be able to reproduce without the presence of males!

Black tip reef sharks are viviparous, meaning they give birth to live young rather than eggs. It can take up to 11 months of gestation before baby reef sharks are ready to be born: that’s two months longer than humans!

Meet the Blacktip Reef Shark

While you certainly won’t bump into Jaws while paddling at East Sands, sharks are still one of the most fascinating animals you can discover at St Andrews Aquarium.

The blacktip reef shark is a sleek, fast-moving reef shark best known for the dark markings on the tips of its fins. These markings look a little like they have been dipped in ink, making the species easy to recognise as it glides through the water.

Blacktip reef sharks are found around warm coral reefs across the Indian and Pacific Oceans. They are usually seen in shallow coastal waters, reef flats, lagoons and reef edges, where they play an important role as predators within the marine ecosystem.

Want to meet more incredible marine animals? Explore Our Animals before your visit.

What Does a Blacktip Reef Shark Look Like?

Blacktip reef sharks have a streamlined body built for quick bursts of speed. Their colouring helps them blend into the ocean, with a darker back and lighter underside that makes them harder to spot from above or below.

Their most recognisable features include:

Dark tips or margins on their finsA pale stripe along the bodyA rounded snoutA sleek, powerful swimming shapeA grey-brown upper body and lighter underside

They are usually considered a small to medium-sized shark species, although in the wild they can still grow large enough to look very impressive when cruising over a reef.

Where Do Blacktip Reef Sharks Live?

Blacktip reef sharks are most commonly found in warm, tropical waters around coral reefs. They are strongly associated with shallow reef habitats, where they can often be seen swimming close to the shore, over reef flats or near reef drop-offs.

Their natural range includes parts of the Indian Ocean, Pacific Ocean, the Red Sea and coastal waters around countries such as Thailand, Japan, the Philippines, northern Australia and South Africa.

Because they often live in shallow coastal areas, they can be affected by human activity, including overfishing, coastal development and damage to coral reef habitats.

What Do Blacktip Reef Sharks Eat?

Blacktip reef sharks are not especially fussy eaters. In the wild, their diet usually includes reef fish, crustaceans, cephalopods and molluscs.

That means their menu can include animals such as:

• Small reef fish

• Squid

• Octopus

• Crabs

• Shrimp

• Other small marine animals

They are active hunters and are sometimes seen feeding in groups. During energetic feeding moments, blacktip reef sharks may even break the surface of the water — which is rather dramatic behaviour for a shark that usually prefers the shallows.

How Do Blacktip Reef Sharks Find Their Food?

Sharks are famous for their powerful senses, and blacktip reef sharks are no exception.

Like other sharks, they can detect tiny electrical signals in the water. These signals are produced by the movement and muscle activity of other animals. This helps sharks locate prey, navigate their environment and understand what is happening around them.

So while they may not have superhero capes, they do have built-in ocean detective equipment. Quite rude, really.

Do Blacktip Reef Sharks Lay Eggs?

No — blacktip reef sharks give birth to live young.

This is known as being viviparous, which means the young develop inside the mother before being born as fully formed shark pups. Once born, young blacktip reef sharks are ready to swim and begin life in shallow nursery habitats, where they have a better chance of avoiding larger predators.

Are Blacktip Reef Sharks Dangerous?

Blacktip reef sharks may look dramatic, but they are not the villain of the ocean.

They are generally shy and tend to avoid people. Like all wild animals, they should be respected, but they are far more interested in fish and other natural prey than humans.

At St Andrews Aquarium, sharks help visitors understand just how important these animals are — and why their scary reputation does not tell the full story.

You can also discover one of our native shark species on our Starry Smooth-hound Shark page.

Why Are Blacktip Reef Sharks Important?

Blacktip reef sharks help keep coral reef ecosystems balanced. As predators, they play a role in controlling populations of smaller animals and maintaining the health of reef communities.

Sadly, many shark species face pressure in the wild. Blacktip reef sharks can be affected by fishing, habitat loss and damage to coral reefs. Learning more about sharks is one of the best ways to replace fear with understanding.

Because once you understand sharks, they become much less “monster of the deep” and much more “important ocean neighbour with excellent fin fashion”.

See Sharks at St Andrews Aquarium

A visit to St Andrews Aquarium is a brilliant way to learn more about sharks, rays, fish and other incredible animals from around the world.

From marine life and reptiles to meerkats, otters, penguins and tropical species, there is plenty to discover during your visit.

Plan your family day out here: Plan Your Visit

Explore more species here: Our Animals

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What is a blacktip reef shark?

A blacktip reef shark is a species of reef shark found in warm, shallow waters around coral reefs. It is known for the distinctive black markings on the tips of its fins.

Where do blacktip reef sharks live?

Blacktip reef sharks live in tropical coastal waters, especially around coral reefs, reef flats, lagoons and shallow reef edges across the Indian and Pacific Oceans.

What do blacktip reef sharks eat?

Blacktip reef sharks mainly eat reef fish, but they may also feed on squid, octopus, crabs, shrimp and other small marine animals.

How big do blacktip reef sharks get?

Blacktip reef sharks are usually classed as small to medium-sized sharks. In the wild, they can grow to around 1.6–1.8 metres in length.