Are megalodons still alive

Sadly, no. The last ones died about 11,000 years ago, in Patagonia. Apparently the earliest Indians found them easy to hunt. If only they'd just saved a few breeding pairs, we could have them today.
sciencetist belive megalodon may be still alive because in the late 1900s a large fishing boat wit a lot of witnesses belives to see a great white shark rangeing ifrom the size 70-100 feet(around megalodons size)
They did at one point, but they were very real. You should do some research on these amazing ocean-lords. They are said to be living today, like the giant squid was thought extinct and we're already discovering the Colossal Squid, a much larger and more prehistoric species! Back to Megaladon. They became extinct about 10,000 years ago, not a joke, and some teeth have been recent, as if they were from yesterday! And one of them were only from 10 years ago! Now, it's your opinion that they exist, but I think they exist of today.
Well, the Megalodon shark lived over 2 million years ago in prehistoric times. Most shark biologists are pretty sure that it does not but, who knows what lurks down in the deep that no one has discovered?
This answer is unknown. No one can go that deep under the deep cold seas.There is still creatures no one has discoverd yet. However, scientist do believe that the Megalodon shark still exists.

Cool Fact: Did you know that the Megalodon shark is the biggest shark discoverd? It could easily fit a small car in it's mouth!