Sharks are one of the longest living creatures on Earth. It is estimated that these aquatic animals have existed on Earth for more than 400 million years. Hello it can be found in every ocean on the planet and is essential for the maintenance of ecosystems of aquatic life.
This fact makes sharks one of them animal the most studied. And, this research has shown that these animals have an unusual behavior. This strange behavior is thought to help the sharks survive.
Here are some of the more unusual behaviors of sharks and the reasons behind them.
1. Sharks start hunting before they are born
Some sharks reproduce by laying eggs, while others give birth to young. Interestingly, sharks that give birth to babies, such as great white, mako, tiger and bull sharks, begin to hone their hunting skills even before they are born.
A 2013 study published in the journal Evolutionary biology they found that only a few eggs were fertilized, with the rest becoming food for their stronger brethren. The growing embryos will start hunting when they reach a length of about 5 cm. They eat their smaller, weaker brethren to survive.
2. Even adult sharks can be cannibals
illustrated hiu (commons.wikimedia.org/出球雀台)Many sharks engage in cannibalism, especially on injured sharks. A 2016 study in the journal American Association for the Advancement of Science he discovered that the extinct orthcanth, which lived 300 million years ago, ate its own young when other resources ran out.
Cannibalism is actually an unusual form of survival for animals, but it’s a vital way to preserve their species. Not only a means of feeding, cannibalism also allows the survival of the strongest individuals.
3. Sharks can commit violations
white shark illustration in breach (az-animals.com)The great white shark is an ambush predator with extraordinary hunting techniques. One of which is violation, an efficient technique used to secure kills.
For example, one of the great white shark’s foods is seals. The seals themselves are very agile and violation it is the most effective way to guarantee a kill.
Great white sharks have only one chance of catching a seal. If the first attack doesn’t work, the seal will easily escape. According to page Tourism Tattlerthis technique makes the great white shark one of the deadliest creatures in marine life.
Also Read: 9 Interesting Facts About The Sand Tiger Shark, A Big Shark With A Santuy Spirit
4. Transition of onshore and offshore migration
Continue reading the article below
Editor’s picks
shark illustration (pixabay.com/christels)Great white sharks use the South African coast differently throughout the year. They spend the summer, from August to March, near the coast. Then, during the winter, from March to August, they congregate around seal colonies such as those of False Bay, Mossel Bay and Dyer Island.
The exact reasons behind this transition between onshore and offshore migratory behavior are not fully understood. However, according to p tourism tattler, There are two possible reasons for this migration:
- Change of prey. Their diet has changed from pups that overwinter on islands to smaller fish and shark species that use coastal bays during the summer.
- Great white sharks can give birth and mate in the bay during the summer. They patrol partitions where the water has a high oxygen content. When they stop swimming to mate, they can recover their energy thanks to the high oxygen levels.
5. Loves to spy
illustration of a shark spying (unsplash.com/Alex Steyn)Hopping spy it is a practice in which a sea creature lifts its head out of the water, as whales often do. Several species of sharks have been known to stick their heads out of the water to look around.
Some sharks will hold their head vertically above the water, while others will swim to the surface with a clear line of sight. In both cases, the technique is done to gather information, such as the location of the prey. However, according to the page mental thread, these actions by themselves are not aggressive. A shark can surface several times without being attacked at all.
6. Vomit stomach contents
embellished hiu (commons.wikimedia.org/Jun V Lao)Unfortunately, sharks are often found with their stomachs full of all sorts of inedible items, such as plastic and rubber. This is because the amount of waste in the oceans continues to increase.
One way sharks deal with this is through belly movement. Basically, it’s the ability to regurgitate its contents, swallow it, and then swallow it again, all in a fraction of a second. A 2005 study of Caribbean reef sharks published in Journal of the Marine Biological Association of the United Kingdom concluded that this behavior may be related to the removal of indigestible food particles and mucus from the internal surface.
7. Living around marine volcanoes
shark illustration (Unsplash/Gerald Schömbs)Sharks can be found in nearly every environment on Earth, and one of their favorite places is in the middle of an active volcano in the ocean. Kavachi Volcano, located under the Pacific Ocean near the Solomon Islands, erupts regularly, spewing sulfur, carbon dioxide, ash and rock into the water.
This mountain caldera is too toxic for humans to enter, and the water is extremely hot. However, there are two species of sharks that make this place their home. A 2015 study published in the journal Oceanography find hammerheads and silky sharks swimming and hunting in acidic waters.
It’s unclear how they survive in such an extreme environment. However, this unique behavior is believed to have allowed them to survive several mass extinction events and remain alive today. They also have the innate ability to flee the area before an eruption occurs.
These are some of the unusual behaviors they have Hello. Most likely, all these behaviors helped them survive to become one of the longest-living living things.
Read also: 5 facts about the red devil fish, an ornamental fish that “colonises” Lake Toba
