Tag: Shark

Except they have a sixth sense, called the Ampullae of Lorenzini which are first described in 1678 by researcher Stephan Lorenzini. Sharks have a network of special cells that can detect electricity, called electroreceptors, in their heads. They use them together with the olfactory for hunting and navigation. What is the shark’s sixth sense? A […]

Since many sharks don’t mind when humans get close and even touch them, it’s normal to be curious about whether they form bonds with people. However, sharks are not like dogs, so they do not crave or feel affection, especially for human beings. Therefore, sharks can’t create a connection with a person. Do sharks like […]

Sharks and ray-like skates have a sixth sense – they can detect the electrical fields produced by other living organisms, which can come in handy for homing in on prey obscured by the dark ocean or sandy seafloor. How does shark use their sixth sense? A Shark’s Sixth Sense They are specialized electroreceptor organs that […]

The Sixth Sense! around their head called ampullae of Lorenzini. These are jelly filled pores that go down to the nerve receptors at the base of the dermis. They are specialized electroreceptorelectroreceptorElectroreception and electrogenesis are the closely-related biological abilities to perceive electrical stimuli and to generate electric fields. Both are used to locate prey; stronger […]

Sharks even have a seventh sense, allowing detection of the minute electric fields given off by living animals, inanimate objects, and water passing through the earth’s magnetic field. This sense is used to detect prey at very short distances, even when completely buried under sand. What 6th sense Do sharks have? ampullae of LorenziniA Shark’s […]

White Tip Reef Sharks spend most of their lives hanging out together and are one of the most social species of sharks on the planet. What sharks are social? Scientists at the University of Miami Rosenstiel School of Marine and Atmospheric Science (UM) and the Institute of Zoology at the Zoological Society London (ZSL) found […]

30 paper in the journal Animal Cognition, said the results indicate that the sharks — like some primates, birds, insects and other animals — are capable of using social information to learn about their environment, which could affect how they find food, travel and avoid predators. Are sharks capable of learning? The complex social behaviors […]

But here’s the truth — sharks are actually shy creatures. Hierarchy in a shark’s world is based on size, not species. A diver with its fins and tank is typically larger than most sharks and they tend to give the unknown bigger creature a wide berth. Are sharks friendly? Despite their scary reputation, sharks rarely […]

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 […]

4. Shark skin feels similar to sandpaper. Shark skin feels exactly like sandpaper because it is made up of tiny teeth-like structures called placoid scales, also known as dermal denticles. These scales point towards the tail and help reduce friction from surrounding water when the shark swims. What does a shark feel like to touch? […]

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 it mean to call a girl a shark? 1. a person who victimizes others, as by swindling or cheating. US, Slang. a person with great ability in a […]

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. Can we live without sharks? If you’re not a big fan of […]

Lemon Shark. The lemon shark is easily recognized for its two, equally-sized dorsal fins and its yellow-brown to olive color– an ideal camouflage against the sandy in-shore areas they prefer to forage in. Lemon sharks average between 8 to 10 feet long as adults, but are generally not considered a threat to humans. Are lemon […]

Biting Force. It is not just the amount but the sharpness of the teeth that make sharks such great predators. The very strength of a shark’s jaw means that once it bites down there is not much that it cannot tear apart. What traits make sharks successful predators? What traits make sharks and rays in […]

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 […]

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? […]

“It would be a gigantic failure for humanity that would affect everything from coral reefs to food security and climate change. Once sharks are gone, there is nothing we can do to replace the critical role they play in the balance of the oceans.” What would happen if we had no sharks? “If the sharks […]

Sharks are fish. They live in water, and use their gills to filter oxygen from the water. Sharks are a special type of fish known because their body is made out of cartilage instead of bones like other fish. What determines if a fish is a shark? Body shape. If you look at most fish […]

Sharks are Apex Predators This is because they have very few natural predators. A cascade effect naturally occurs in a balanced, healthy ecosystem, whether it be marine or terrestrial. Why are sharks so good predators? Great white sharks are athletic hunters, leaping completely out of the water as they attack prey from below. They have […]

Sharks, always the superlative, are about 10,000 times more sensitive than any other animal with an electric sense, and much more sensitive than even our best measuring equipment. Are sharks afraid of electricity? Sharks have an innate ability to detect electric fields, useful for sensing the bioelectric activity of their prey. Researchers discovered that strong […]