Whether you love them or not, you can’t deny that sharks are one of the most magnificent and oldest marine species on the planet. When it comes to Google searches you will find them from the most hot topics.
So, in this article, we are answering the most FAQs about sharks. Read on for the answers and prepare yourself to learn several fun facts about sharks.
Important FAAQs about Sharks
If you are interested in sharks and want to know more about them, here are some answers to the most important FAQs about sharks:
Is a Shark a Mammal?
Actually no, sharks aren’t mammals. Despite their names, such as whale sharks, all sharks are considered fish and differ from mammals in many ways. For instance, a mammal breathes air through lungs, feeds their babies with milk and are from warm blood animals.
On the other hand, sharks breathe by passing water over their gills, haven’t got any mammary glands and are from cold blood animals, except mackerel sharks.
Can Sharks Swim Backwards?
No, the pectoral fins of sharks can’t upwards like other marine life, that makes them limited to the forward movement only.
However, that is considered a good thing, as going backwards can cause water to reenter the gills and interfere with the respiratory operation (This is also considered to another popular question “can sharks down?”).
Do Sharks Sleep?
This is one of the topics that are under scientific debate which is linked to another question ( do sharks stop swimming or not?
The recent research in addition to video evidence suggest that sharks do sleep, but this is based on several indicators, such as the activity levels, metabolic rate and posture.
Do Sharks Lay Eggs?
Laying eggs depends on the species, many species of sharks including hammerheads are viviparous and give birth to many pups (that is the reason why people ask “Is a shark a mammal?”.
There are also ovoviviparous sharks, such as whale sharks. This type of sharks hatches eggs internally then gives birth to live young. On the other hand, oviparous species, like catsharks lay eggs externally in protective cases called mermaids purses.
Why Are Sharks Called Sharks?
The exact etymology for this world isn’t known, but there is a theory that said it comes from the German word schurke which means villian or rogue because of the predatory characteristics of this fish.
Are Sharks Blind?
No, it is a fact that sharks have excellent vision. Their eye anatomy is similar to humans, but their vision is 10 times better than ours, especially in low visibility conditions. However, sharks have a weakness that is recently discovered, color blindness.
Do Sharks Fart?
Somehow yes, the sand tiger shark, for example, swallows air from the surface to help him get better buoyancy, then expels it in a fart-like fashion in order to sink again. Sharks don’t have a swim bladder, so this action is like having a neutral BCD.
Do Sharks Live Forever?
No, but there are some species such as the Greenland shark that may live for 500 years. The average lifespan of the whale shark is 70 years, while many species of sharks may only live for 20 years. The only marine creature which is considered biologically immortal is the jellyfish.
What Language Do Sharks Speak?
Sharks can’t make sounds, but how do sharks communicate? We can consider the body language, lowered pectoral fins, open Jews, archer backs and inflated gills as non-verbal forms of shark speak.
Do Sharks Have Bones?
Incredibly, sharks don’t have a single bone in their body; the skeleton of the shark’s body is made from strong cartilaginous tissue which is characterized by being light and flexible.
That enables them to swim fast, turn quickly and also to open their jaws extra wide and have a more powerful bite.
Can You Swim with Sharks?
Sure, there are many destinations and dive sites around the world where you can practice scuba diving with sharks and enjoy witnessing these fascinating creatures close up.
For people asking “can I ride a shark?” The answer is, never ride a shark or even touch them. It’s considered a massive No-No.
Are Sharks Bulletproof?
Sharks don’t have ballistic superpowers or Kevlar armor, but if you are looking for a bulletproof animal, you are searching for whale sharks.
Whales sharks aren’t only the largest fish worldwide, but also have the thickest skin of any living animal, which is 10 cm in thickness.
Are Sharks Scared of Dolphins?
Sharks aren’t exactly scared of dolphins, actually larger species of sharks prey on them. The matter is that dolphins stick together in order to fight off threats and with some groups reaching over 1,000 individuals, lonely sharks prefer to swim in other places.
Are Sharks Dangerous?
In general, sharks don’t pose any direct threat to us, as we aren’t a part of their diet. When shark attacks happen, the reason for that is usually from curiosity or even confusion.
You will be surprised when you know several things that are more likely to hurt you than a shark attack, such as ladders or hippos. If you are wondering how many people die from sharks each year? The answer is only five, this is according to the international shark attack file.
But, the question is “How many sharks are killed each year?” Actually, 100 million sharks are killed by people every year. Indeed, sharks have to fear more from us.
Bite-sized Answers
How Many Species of Sharks?
The species of sharks exceed 500 types.
How Fast Can a Shark Swim?
The fast Mako sharks can reach 700 kph.
Is a Shark a Carnivore?
Actually, most of them are, but some species, such as basking sharks feed on blanktones.
What is the Biggest Shark in the Ocean?
The whale shark is recorded to reach 18.8 m long.
How Deep Can Sharks Swim?
Scientists have found sharks 3 km deep.
Are Sharks Endangered?
Sadly, about one third of shark species are threatened to be extended.
What Shark am I?
If you want to know what type of shark you are, take our shark quiz.
After you get answers to “is a shark a mammal?” and other several important FAQs about sharks, take the AWARE Shark Conservation Scuba Diver course from PADI and learn how to protect their habitat by being a PADI Torchbearer.
