The Truth About Megalodon: The Prehistoric Shark That Preyed On Whales

Marine biologists believe that two-thirds of Ocean life remain undiscovered. This means that besides there being undiscovered species of fish in the vast bodies of water around the world, there are also undiscovered whale, dolphin, and shark species among other marine reptiles, plants, sponges, crustaceans, algae, etc that are still to be found. One marine animal that would not have been difficult to discover today is the now extinct Megalodon species of shark.

Megalodon, which translates to “big tooth” from Ancient Greek, roamed the oceans of the world millions of years ago during the geological epoch of the Early Miocene to the Pliocene. From fossil remains of the great ocean monster, scientists have estimated through reconstruction that it reached a maximum length of 18 meters (59 feet) and had an average size of 10.5 meters (34 feet), thus making it one of the largest and most powerful predators to have ever lived. It has further been estimated that its large jaws could exert a bite force of up to 110,000 to 180,000 newtons (25,000 to 40,000 lbf) and their teeth from which the name is derived from, were thick and robust, built specifically for the ability to grab prey and break bones.

Evolution and Habitat of the Prehistoric Shark

Megalodon, which is thought to be a robust-looking shark with a similar build to the Great White, was previously believed to have been closely related to the large mackerel shark that can be found today in the coastal surface waters of all the major oceans in the world. This would have made it a member of the family Lamnidae.

Recent discoveries and further research have, however, debunked this as there is an almost unanimous agreement between marine scientists that it belongs to the extinct family Otodontidae, a species that diverged from the family Lamnidae during the geographical period of the Early Cretaceous. Scientists have however been unable to agree on its genius, with Carcharocles, Megaselachus, Otodus, or Procarcharodon listed as possible placements.

Jaw of a Megalodon
The jaw of a Megalodon (image source)

With excavations of fossils (teeth, vertebral centra, and coprolites) having occurred in many parts of the world, including Europe, Africa, the Americas, and Australia, it is believed that the Megadolon had a cosmopolitan distribution, occurring commonly in subtropical to temperate latitudes.

Why Megalodon Went Extinct

There are a number of theories that try to explain why Megalodon went extinct millions of years ago. Some of the more plausible theories that have been put forward by marine scientists have to do with the changes earth experienced during the Oligocene and Pliocene such as climate change and changing ecosystems.

1. Climate Change

The Oligocene era, 35 million years ago, brought glaciation at the poles and led to changing currents and precipitation as well as an increase in the coolness of the oceans. This hindered the Gulf Stream from reaching major marine ecosystems, preventing marine life from receiving nutrient-rich water and thus affecting the food sources of Megadolon and other animals of the time that have gone extinct.

It is believed that the shark’s range did not particularly extend into colder waters due to the fact that its body was unable to retain a significant amount of heat, leaving it with no option but to restrict itself to shrinking warmer water bodies. These decreasing warm waters were also the most suitable nursery sites for Megalodon, so with it being unable to successfully reproduce and nurse its offspring, its extinction was almost inevitable.

Read Also: 10 Terrifying Things About Wendigo, Its Origin, and History 

2. Changing Ecosystems

Due to its size, it is believed that Megalodon may have been too large to sustain itself in a time when there was a decline in marine food resources. Many marine species are believed to have gone extinct at the end of the Miocene era with those surviving presumed to have been very fast swimmers and thus more elusive to predators.

The Central American Seaway is further believed to have closed during that time period, leading to a decrease in the diversity and abundance of tropical whales, which was a huge food source of the prehistoric whale eating shark which needed to feed heavy due to its size. Competition from other large marine predators such as macro predatory sperm whales, killer whales, and great white sharks in the Pliocene further doomed the existence of Megalodon.


Sam Raimi Net Worth: How Much Is The Filmmaker Worth In 2019?

Samuel M. Raimi is a multi-talented filmmaker well known for creating the Evil Dead series that generated a cult following, he is also known...

Why Did CocoSori Disband and What are the Former Members Doing Now?

For a few years, the not so popular k-pop; J-pop duo CocoSori, created by MOL Entertainment, thrilled their fans with heartfelt music and stirred...

Sofia Coppola Net Worth And How Much She Made From Her Movies

If there was really anyone that fits the bill of Hollywood royalty, then Sofia Coppola wouldn't be too far off the mark. She is...

Kris Wolf – 5 Interesting Facts To Know About The Wrestler

Born in America but made in Japan, Kris Hernandez better known by her ring name Kris Wolf is a larger than life personality, an...

Where are The ‘Shahs of Sunset’ Cast Now and How Old are They? 

Shahs of Sunset is a documentary reality TV show which focused on the lifestyle of a group of wealthy Iranian-Americans living in Beverly Hills. When...


Philip Mckeon Bio, Is He Married, Who is The Wife, Is He Gay? 

Like little stars, they dazzle on our screens and take our breath away with their undisputable talents. They are no other than child stars....

Biography of Seal (Musician) – Is He Married, Where is He Now?

Seal is a British Soul and R&B singer who has become very famous for songs such as the highly celebrated Kiss from a Rose....

Juice Wrld Age, Height, Girlfriend, Net Worth, Is He Dead?

Juice Wrld is a popular American rapper, singer and songwriter whose breakout song All Girls Are the Same scored him a $3 million record deal. Known for...

Clive Owen Wife (Sarah-Jane Fenton), Daughters, Height, Weight

Clive Owen is an English actor who has been in the screen business for as many years as most people can remember. He became...

Pat Sajak Wife, Daughter, Family, Married, Kids, Bio, Net Worth, Salary

To many people, nothing paints a better picture of how influential Pat Sajak is than the recent case of a man who killed his elderly...

Get the Latest Gist, Profiles and Trends Straight To Your in your inbox

Related Stories