Eric Stackpole

Would the camera work?

We had no idea.

but it did come up, we found it, we took it back to the ship, and fingers were crossed.

Finally, we opened it up, there was no water inside, oh my God, we pulled out the SD card, and like with bated breath, we put it in the computer and waited for the files to load.

And oh my God, we had footage from the back of a sperm whale.

Oh, my.

Rui and I were losing it.

The first thing we saw was the whale's head and back as she descended into the bottom.

You could hear the water rushing by as she swam faster and faster into the deep particles rushed by the camera.

And the water pressure was so immense from the speed that eventually the suction cup started to come loose.

I thought that was going to bit.

We were going to lose it.

But one suction cup miraculously held on, and it caused the tank to rotate backward.

And now we could see the sail's massive fluke.

These can be 16 feet across.

on some whales, driving her into the depths.

And as it got deeper, we started hearing on the camera's microphone clicking.

You guys hear that?

That is echolocation.

That is the sound of the sperm whale hunting by listening for echoes bouncing off of prey.