How long can you hold your breath?

We marvel at our little African Dwarf Frogs. The world they live in requires them to hold their breath for most of their lives. They come to the surface, gulp air into their lungs and submerge, over & over. All their lives, they live underwater on gulps of air.
Can you imagine trying to live like this? Impossible for humans... or is it. Here's someone who rivals our aquatic frogs in his lung capacity, able to swim to crushing depths on a gulp of air, not only for minutes at a time but to also fish for food underwater. See how long you can hold your breath while you watch this Underwater Hunter ply his trade.