What do you get for killing the megalodon in Sea of Thieves?

I'm curious, what kind of rewards or loot do players receive for successfully slaying the fearsome megalodon in the popular pirate-themed game, Sea of Thieves? Is it a unique treasure chest filled with valuable gems and coins, or perhaps a special title or cosmetic item that showcases their bravery and skill in taking down such a formidable foe? I'm eager to know the specifics of what players can expect to gain from this challenging and exciting encounter.