Category: Fish

Culling. Shark culling is a term used to describe the blatant killing of sharks and is also used by some to describe the use of traditional drumlines. PROS: Supporters argue fewer sharks equal fewer attacks. What are the advantages of shark culling? Culling programs are not only ineffective at reducing the risk of shark bite, […]

ISAF confirmed 73 unprovoked shark bites on humans and 39 provoked bites. “Unprovoked bites” are defined as incidents in which a bite on a live human occurs in the shark’s natural habitat with no human provocation of the shark. Florida had most unprovoked bites in U.S. U.S. State Total Fatal Total Cases 47 1 Has […]

How Do You Know It’s A Shark Tooth? Often people pick something up that looks black and think it’s a shark tooth. The best way to tell if it’s a real shark tooth is to see if it has ridges and a gum line near the top. Also, you probably won’t be able to break […]

Some species are ‘hypnotised’ when they are turned upside down. Sharks’ noses are full of nerve endings, and rubbing them is said to scramble their sensory system. Are sharks sensitive in the nose? Sharks have a complex electro-sensory system. Enabled by receptors covering the head and snout area. These receptors sit in jelly-filled sensory organs […]

Since the release of Jaws in 1975, shark populations have only fallen catastrophically. Over the last half-decade, populations of sharks and rays (a close evolutionary relative) have decreased by 71%. More than 100 million sharks are killed each year, and over 30% of all shark and ray species are considered threatened. Did people hunt sharks […]

But when a team of scientists recently sent down camera-equipped robots, they not only found animals surviving in and around the volcano; they found a surprising amount of biodiversity, including silky sharks, hammerhead sharks and the rarely seen Pacific sleeper shark, which had previously been caught on video just What sharks live in lava? Scientists […]

It’s not a big deal for sharks, because they are constantly producing new teeth to replace the ones they lose. In fact, some sharks can have over 50,000 teeth over the course of their lives! Many sharks have teeth in layered rows. Both their upper and lower jaws can have 2-3 or as many as […]

An animal – such as a shark or a human – with a two-opening gut (with a mouth at one end and a cloaca or anus at the other) can be thought of as a tube. Do sharks have stomachs? Sharks have large J-shaped stomachs that can expand considerably. When prey is captured, it is […]

Scuba diver Simon Nellist died in a shark attack in Little Bay, Sydney, on February 16, 2022, after suffering “catastrophic injuries”, according to police and ambulance services. Has a shark ever killed a scuba diver? In fact, providing it’s done respectfully the odds of being attacked by a shark while scuba diving are minuscule. Despite […]

Sharks can slosh water around in their mouths to manipulate food to some extent, but swallowing is another matter. They may compensate by using the muscles of their pectoral girdle – the equivalent of our shoulders – that supports and powers the anterior ns during swimming. How do fish eat without swallowing water? For fish, […]

A really well made suit MIGHT be able to withstand being punctured by a white shark, but chainmail does not protect at all from crushing or twisting forces. Doesn’t really matter whether it’s teeth break your skin or not if it rips your arm off and crushes the bones to powder. Why do shark divers […]

A great white shark would win a fight against a tiger shark. Although the tiger shark may be sleeker and have a smaller profile, it’s also slower than the great white shark. What shark can beat a great white? Comparison of Orca Killer Whale and Great White Shark Attributes The Great White Shark Swimming speed […]

Basically, this means that in situations when personal deterrents (such as the Ocean Guardian Scuba7) do not prevent bites, shark bite injuries can be reduced through puncture-resistant fabric such as Kevlar neoprene. What material can sharks not bite through? Shark Stop developed what they call a space-age polymer nanofibre technology, which is resistant to shark […]

So is diving with Sharks dangerous? Actually the answer is no, Sharks are amazing and powerful creatures. Although Sharks are carnivorous, they do not preferentially prey on scuba divers, or even humans. Sharks do attack humans, but such attacks are extremely rare! Is it safe to snorkel around sharks? Consider Group Snorkeling If you stay […]

The scariest thing about a shark’s mouth — aside from the teeth — is the bacteria. “It’s a really dirty bite,” said Dr. Robert Borrego, medical director of the St. Do sharks have bacteria in their mouth? Shark bite lacerations may serve as a source of these potentially infectious bacteria, particularly Vibrio spp., and should […]

Even though sharks have jaws made of flexible cartilage that are capable of detaching from the skull (chondrocranium), powerful muscles attach the jaws to the skull and allows them to exert high biting force. Why do sharks jaws come out? In sharks, the upper jaw rests below the skull, but can be detached when the […]

Shark mouth A shark’s mouth has taste buds inside the mouth surface. The shark uses these to determine if prey is edible or not. The great white shark might spit out food it does not like. What is the shark mouth? Sharks have a very unique jaw structure, which makes their mouths especially effective weapons. […]

Scientific organizations have shown that chumming does in fact, change great white shark behavior. In its current form, shark cage diving is not sustainable, and I only see it leading to more accidents and tragedies, for people and for sharks. Are shark dives ethical? Though most sharks are generally safe to be around, great white […]

See, when sharks are stressed out, they barf — and not just food. Sometimes they puke out their entire stomachs. That happened to a 6-foot-long blue shark that beached in Provincetown, Massachusetts, a couple years ago, for example — and this is what it looked like. Why? Do sharks throw up their food? Many different […]

But why do sharks barf out their entire stomachs? (This has a scientific name, by the way, and it’s called stomach or gastric eversion.) Apparently, it’s just a way for the sharks to cleanse their stomachs. “It’s basically rinsing it out,” Skomal says. Do sharks eat their own guts? No so with sharks. They have […]