Author: Gerardo Gonzalez

No, there are no sharks in Lake Tahoe. Is it safe to swim in Lake Tahoe? Here’s an oft-asked question: Can you swim in Lake Tahoe? The answer is yes, especially if cool/cold water is your thing! And, if you look at all the water sports outfitters and popular beaches in the area, it’s clear […]

It is exceptionally hard for sharks that have evolved in saltwater to transition to freshwater due to the lack of salt. Without retaining salt inside of their bodies, the sharks cells can rupture, causing them to bloat and die. Is there any freshwater sharks? the river sharks, Glyphis, true freshwater sharks found in fresh and […]

The species has been spotted 2,500 miles (4,000 kilometers) up the Amazon River in South America and dwell in Lake Nicaragua, a freshwater lake in Central America. Bull sharks have traveled up the Mississippi River as far north as Illinois and are regularly spotted in India’s Ganges. What was the farthest inland a bull shark […]

Even though hammerhead sharks are not hostile toward humans, they are nevertheless dangerous and should be avoided at all times. It is estimated that only a very small number of human attacks have ever been seen. Although they don’t actively seek human victims, when invaded, they will attack a human. Do hammerhead sharks attack human? […]

So, the answer to “do sharks poop” is definitely, yes! Such is the conjured-up imagery it’s natural to forget about anything else. But, sharks possess fairly straightforward digestive systems meaning that, like other fishes, they too poop. Does a shark fart? We’ve all seen tiger sharks in aquariums just hanging there, unlike most sharks which […]

Just like many marine filter-feeders, whale sharks feed mostly on krill, small fish, larvae and other plankton. Add some digestive juices into the mix, and you’re left with what has been described as “an unholy mingling of fart and fishiness”, much like the smell produced by whale breath. What Colour is shark poop? The plume […]

Certain dive shops offer expeditions to dive with hammerheads, who swim by the islands every February. Massive sharks arrive by the dozens, and although these fish are usually shy and apprehensive, many individuals in the area are content around divers. Do hammerhead sharks hurt you? Human interactions With its large size and cutting teeth, the […]

Most Sharks Cannot Survive In Freshwater That is because their bodies are not adapted to freshwater climates. A shark’s body chemistry is designed to match the saltwater around them, so their bodies contain a lot of salt. Can great white shark live in freshwater? Secondly, most sharks can only tolerate saltwater, or at the very […]

Whilst it is theoretically possible for bull sharks to live purely in fresh water, experiments conducted on bull sharks found that they died within four years. How long can a shark live in freshwater? Bull sharks that were trapped when a dam was constructed on the Rio Bayano river in 1976 survived for around four […]

Basically, there are two main reasons great whites aren’t kept in captivity: it takes an insane amount of resources for the aquarium to pull; and – most importantly – the sharks die quickly outside of the oceans no matter what zookeepers do. Does any aquarium have a great white shark? The Monterey Bay Aquarium remains […]

TASTE: Sharks can taste if something is bitter, sweet, salty or sour. Do sharks like salt? Low-Salt Habitat Their ability to tolerate freshwater is rooted in salt retention. Sharks must retain salt inside their bodies. Without it, their cells will rupture and cause bloating and death. Given this requirement, most sharks cannot enter fresh water, […]

Ochoa watched on as a group of orcas* killed and ate what appears to be a scalloped hammerhead shark (Sphyrna lewini). We’re certainly familiar with shark-eating orcas, but this kind of footage is extremely rare. In fact, just a handful of orca-on-hammerhead predations exist on record. What sharks do orcas eat? In 2017, five great […]

Do not drag or push a beached animal back to water. Dragging the animal might cause it serious injury. Instead, wait for expert help to arrive. Chances are that a beached animal ended up beached because it was ill, and should be given medical care before returning it to the sea. Do sharks beach themselves […]

The quick answer is no. Dr. Craig McClain explains: I know that the esophagus of a whale shark measures only inches across. Can a person fit inside a whale shark? The whale shark’s pharynx isn’t nearly as capacious as you might think. According to Motta, an average-sized man would barely fit. If you can overcome […]

Caught on camera, a young great white shark had beached itself after trying to catch seagulls. But thanks to beachgoers and a shark expert, the great white survives. The 7-foot-and-a-half foot shark, described by experts as a juvenile, was found struggling at one point on it’s back on Cape Cod’s Chatham Beach, Monday. Can a […]

Scientists believe that their ability to repair damaged DNA has helped them survive over the years. Their presence on the planet over millions of years have earned them the title of living fossil. Sharks also have a strong immune system that protects them from serious infection and illness. Did sharks exist with dinosaurs? Today’s sharks […]

The mucus layer in sharks and rays has been poorly studied. However, it is known that mucus from stingray skin appear to accelerate the healing processes of wounds, and that bacteria found in the mucus present antibacterial activity against human pathogens (Luer et al., in press). What do sharks have on their skin? Shark skin […]

San Francisco Bay is reputedly home to some of the world’s most shark-infested waters. It sits in the middle of the so-called “red triangle” where around 40% of the country’s great white shark attacks have taken place. Is it safe to swim in San Francisco Bay? Summary. The San Francisco Bay is not a good […]

MYTH: If a shark’s fin is cut off, it will just grow back. Sharks cannot actually grow back fins that are cut off. (But some other fish can.) This biological fact is even more troublesome in light of the growing shark fin trade — especially in Asia, where the fins are a key ingredient in […]

Fish fingers (British English) or fish sticks (American English) are a processed food made using a whitefish, such as cod, hake, haddock, shark or pollock, which has been battered or breaded. They are commonly available in the frozen food section of supermarkets. Are fish fingers 100% fish? Cod Fillet Fish Fingers, Lightly Fried. 100% Cod […]