Category: Fish

Sharks have been known to attack humans when they are confused or curious. If a shark sees a human splashing in the water, it may try to investigate, leading to an accidental attack. Still, sharks have more to fear from humans than we do of them. What attracts sharks to humans? Results are mostly inconclusive, […]

Shark skin feels exactly like sandpaper. In the opposite direction it feels very rough like sandpaper. As the shark grows, the placoid scales do not increase in size. Instead the shark grows more scales. The silky shark (Carcharhinus falciformis) has small scales giving it a “silky” feel to the touch. Can sharks feel when you […]

Incursions by smaller sharks are frowned upon, and intruders are evicted, violently if necessary. Some shark encounters may be a result of the shark’s natural instinct to defend its food source against all comers. Whatever the ultimate cause of shark attacks, we are a far greater threat to them than they are to us. Why […]

Like tiger sharks, bull sharks are opportunistic: They will eat generally whatever they encounter. This includes animals like horses, hippopotami and — yes — dogs. Do dogs attract shark? However, as marine ecologist Charlie Huveneers explained to the Sydney Morning Herald, “While sharks can be attracted to sound, most swimmers make more sound than a […]

Researchers have discovered that three deep-sea shark species — the kitefin shark (Dalatias licha), the blackbelly lanternshark (Etmopterus lucifer), and the southern lanternshark (Etmopterus granulosus) — all have bioluminescent properties. Is there a shark that glows? This deep-sea shark is one of the world’s largest glowing animals. The bioluminescent blackbelly lanternshark, as seen from a […]

They’re often portrayed in books and movies as smiling. But scientists say it’s not likely sharks can or do smile. Unlike dogs, monkeys and dolphins, sharks are fish. And, in sharks and other fish, the parts of the brain related to feelings aren’t developed enough to produce a smile, according to scientists. Do sharks feel […]

Like rays and skates, sharks fall into a subclass of fish called elasmobranchii. Are sharks called animals? Sharks are fish, even though some people believe they are mammals due to how big some of them can get and because some give birth to live young. Fish are aquatic animals that were among the first vertebrates […]

Think about what sharks eat—brightly colored fish. According to the International Shark Attack File, a joint venture between the American Elasmobranch Society and the Florida Museum of Natural History, sharks are attracted to bright yellows, oranges, and greens. What color most attracts sharks? As mentioned, sharks are attracted to high contrast colors. And in murky […]

The top 10 shark fishing nations, in order, are: Indonesia, India, Spain, Taiwan, Argentina, Mexico, Pakistan, the United States, Japan, and Malaysia, with Thailand, France, Brazil, Sri Lanka, New Zealand, Portugal, Nigeria, Iran, the United Kingdom, and South Korea following, comprising the top 20 fishing nations. How many sharks does China kill? Once a delicacy, […]

They will bite down onto the limb, which is typically attached to a deceased individual. It’s not usually the cause of death, but someone has drowned and they’re hanging in the water. The shark will bite off the limb and spiral down to shred the flesh from the bone.” Do sharks eat dead things? Sharks […]

Sharks can’t make any noise, so they use body language to communicate. Opening their jaws, nodding their heads, and arching their bodies can be social signals as two sharks ‘talk’ to each other. Can sharks talk to humans? Gaping is a way sharks communicate with each other, and maybe even try and communicate with humans. […]

As apex predators, sharks play an important role in the ecosystem by maintaining the species below them in the food chain and serving as an indicator for ocean health. They help remove the weak and the sick as well as keeping the balance with competitors helping to ensure species diversity. What are the benefits of […]

Sharks do engage in periods of rest throughout the day, but it is much different from the kind of sleep that other animals engage in. It is true that many types of sharks must keep moving in order to receive life-giving oxygen from the water passing through their gills. What does a shark do during […]

They even exhibit social learning, which means they’re able to learn a new behavior from watching another member of their species do it. And there’s evidence that sharks are capable of problem solving, and can remember the solutions to puzzles for almost a year! How intelligent are sharks? Sharks have small brains and are not […]

Nobody knows, but we have identified around 500 of them. New shark species are being discovered each year — some the size of forks, others the size of buses. Do we know alot about sharks? Sharks are iconic creatures, but researchers know remarkably little about them. For instance, although scientists know of more than 400 […]

They fit in. A person with purpose is like a shark. They fear nothing, they take what they need, when they need it and they are completely deliberate in their actions. What makes a person a shark? 1 : a rapacious crafty person who takes advantage of others often through usury, extortion, or devious means […]

1. a person who victimizes others, as by swindling or cheating. 2. US, Slang. a person with great ability in a given activity; adept; expert. What does the slang shark mean? 1. a person who victimizes others, as by swindling or cheating. US, Slang. a person with great ability in a given activity; adept; expert. […]

Large sharks prey on dolphins, they particularly target very young calves and sick adult dolphins as these are the weakest and most vulnerable individuals. Why sharks are afraid of dolphins? More than Peas in a Pod. Sharks are solitary predators, whereas dolphins travel in groups called pods. Whenever a member of the group is in […]