Scientists Discover 512-Year-Old Shark, Which Would Be The Oldest Living Vertebrate On The Planet (Pics & Video)

When the research scientist was asked how in the world this shark could possibly reach the age of over 500 years old, he guessed that the cold water combined with a slow metabolism would be responsible. He does admit right after, however, that further research is still needed and that this explanation is just a theory. Watch video here: