Teenager finds ‘discovery of a lifetime' underwater

Earlier this week, sixteen-year-old Aiden Andrews and his dad Brian joined local fossil-hunting tour company, Fossil Junkies, for a guided dive.

They were on the trip off Manasota Key in Florida, US, when the teen made a 'discovery of a lifetime'.

And luckily, the father-and-son duo were equipped with an underwater camera to be able to capture their sweet excitement over doing so.

Rather than just finding an old spoon or a bottle or a fancy looking rock, Aiden spotted an absolute whopper of an animal tooth. I mean, a tooth so big you could mistake if for a big bird's beak or a trotter of some sort.

As for its owner, the clue is in its mega size, as its believed to be a megalodon shark tooth.

Now that's a mega tooth. (Fossil Junkies)

Now, it is pointed out by Captain John Kreatsoulas (per FOX 13 Tampa Bay) that finding small megalodon teeth isn't particularly uncommon. And from their Facebook page, it's evident the Fossil Junkies are often picking up shark teeth from the ocean floor.

However, finding one this size (a humongous six inches) is rather rare.

Aiden and Brian can be seen celebrating the incredible find underwater, with the teen's excited 'whoops' audible through his mask as the tooth almost appears to be the same size as, if not bigger, than his hand.

"Oh my god...", "Look at this thing!" and "That's over six inches!" can all be heard as the teen hands over the fossil to his dad to show the camera.

"Woohoo!" he shouts as their excitement increases and they all fist bump in celebration. Aiden of course bagged the find for safekeeping as they documented this incredible moment on their dive.

Having gone extinct some 2.5 million years ago, the megalodon shark was widely popularised by big old scary monster movies given its huge size.

They weighed in as much as 30 large great white sharks and would reach lengths of up to 60 feet as they ruled the seas from about 17 million years ago.

The only marine animal to ever outweigh it is the blue whale.

Paleontologists have estimated that the absolute whopper of a shark needed to devour 2,500 pounds of food a day (putting this in simple terms, it would be like eating 3,300 cans of tuna).

As for their teeth, they had plenty of them. They would constantly shed teeth (as sharks lose thousands over a lifetime), explaining why scientists have found hundreds of megalodon teeth in oceans and on beaches all over the world.