Author: Lorraine Wade

They can sense electrical fields in water. This ability is known as electroception, and great white sharks are very good at it. They can sense one millionth of a volt in water! The main purpose of this ability is finding prey, as it means that sharks can sense the electrical fields of marine animals. Do […]

In addition to those we have – sight, hearing, touch, smell and taste – sharks have two other senses, mediated by specialized receptors: electroreceptorselectroreceptorsElectroreception and electrogenesis are the closely-related biological abilities to perceive electrical stimuli and to generate electric fields. Both are used to locate prey; stronger electric discharges are used in a few groups […]

Smell is incredibly important to sharks and how they use this sense is quite fascinating. Just under the snout of a shark are two small openings, or nares (nasal cavities). Each nare consists of two more openings. Water goes in the one opening and out the other. Do sharks have a powerful sense of smell? […]

Sharks keep ocean ecosystems in balance Sharks limit the abundance of their prey, which then affects the prey of those animals, and so on throughout the food web. Because sharks directly or indirectly affect all levels of the food web, they help to maintain structure in healthy ocean ecosystems. Why are sharks important to humans? […]

But how is a shark different from other kinds of fish? Most other fish have skeletons made of bone. A shark’s skeleton is made of cartilage, a type of strong but flexible tissue. Most other fish are covered in smooth, flat scales. What are two ways that sharks are different from fish? You could say […]

Whales are not smarter than sharks—in fact, in some cases, sharks are actually more intelligent. If you’re curious about which animals have the best brains of all, read on to learn more about whale and shark intelligence, including how they use their noggins in different ways. Are sharks the smartest animal? Sharks have small brains […]

According to experts, a shark’s tongue is designed to provide protection, and it protects the ventral aorta, an important part of a shark’s anatomy. The ventral aorta is protected against large pieces of food since it is so near to the shark’s mouth. Can sharks bite their tongue? With sharp and piercing teeth, it’s common […]

Whale against Shark Who would win in a fight to the death? Although the great white shark has a fearsome reputation, in a straight fight it is outclassed by the orca. Not only are orcas much bigger, they are also smarter. Can a shark defeat a whale? Do Sharks Eat Whales? The short answer to […]

They may eat plankton, shellfish, sea turtles, fishes, seals, porpoises, squid, or whales. Sharks circle their prey and frequently approach from below. When excited by the smell of blood, sharks may have a “feeding frenzy.” This means that they attack any object within reach and feed rapidly. What do sharks do eat? Sharks are opportunistic […]

Sharks have roamed the world’s oceans for hundreds of millions of years. In that time, many species have barely changed. But some strange sharks are still evolving—and have even learned to walk. Did sharks stop evolving? THE CENOZOIC ERA (65 million years ago – present day) Hammerheads were the last of the modern shark families […]

It begs the question: why haven’t sharks evolved? Sharks have evolved, it just doesn’t really seem like it. Sharks have no known predators so they dominate their ocean landscape. As long as their dominion remains the same, they have no reason to adapt in a large way. Are sharks still evolving? Sharks have roamed the […]

In “Jaws,” the fictional shark is said to be 25-feet in length and approximately 3 tons. How big was the actual Jaws shark? 25 feet longAt a whopping 25 feet long, Bruce would have weighed 4.9 tons in real life, higher than Quint’s estimation of 3 tons. Is the shark in Jaws 2 bigger? Each […]

In this case, though, the shark wasn’t necessarily going for the diver. Touching the snout of a shark can elicit an instinctual mouth-gaping response. It’s reactionary, but not always aggressive, and often happens much more slowly than photographs suggest. What happens when you touch a shark’s nose? Shark studies have even found that touching a […]

It is commonly believed that the best way to fend off a shark attack is to punch (or stab, if you can) a shark in its nose, which is especially sensitive. The best bet, however, is to go for the eyes and gills, as Lisewski did. Follow this link here for a clickable diagram of […]

Greenland sharksGreenland sharksAs an ectotherm living in a just-above-freezing environment, the Greenland shark has the lowest swim speed and tail-beat frequency for its size across all fish species, which most likely correlates with its very slow metabolism and extreme longevity.https://en.wikipedia.org › wiki › Greenland_shark What is the coldest water shark? As it lives in the […]

Wolf sharks are streamlined, muscular fish, with large, powerful jaws and a pointed snout. Often, the only part of the shark visible from a ship is their sharp dorsal fin, which slices through the waves when the wolf shark is close to the surface. Are Wolves related to sharks? Sharks dwell in the ocean, wolves […]

Shark species are nondescript in colour, varying from gray to cream, brown, yellow, slate, or blue and often patterned with spots, bands, marblings, or protuberances. What color attracts sharks? Sharks attracted to yellow and white bathing suits? Shark expert, George Burgess, refers to bright colored yellow as “yum, yum yellow,” to a shark. Since sharks […]

Crocodiles kill many more people every year than sharks. Who wins crocodile or shark? A great white shark would win a fight against a saltwater crocodile. These deadly creatures are incredibly powerful, but the great white shark has an amazing advantage in the water. Not only would this animal probably notice the crocodile first, but […]

‘” Barrett had expected skepticism from the shark community; sharks don’t have vocal cords, so they can’t make sounds in the way whales, seals, or humans do. They also don’t appear to have the ability to make sound in the way that some particularly vocal fish do. What type of noise does a shark make? […]

Mako Shark. Mako SharkMako SharkThe shortfin mako shark (/ˈmɑːkoʊˌ ˈmeɪ-/; Māori: /ˈmaːko/; Isurus oxyrinchus), also known as the blue pointer or bonito shark, is a large mackerel shark. It is commonly referred to as the mako shark, as is the longfin mako shark (Isurus paucus).https://en.wikipedia.org › wiki › Shortfin_mako_shark Is shark meat tasty? Depending on […]