Watch the video again. Fill in the blanks.
David Gallo: Underwater Astonishments


. . . Today we've only about three of what's out there in the ocean. Already we've found the world's highest , the world's deepest , underwater lakes, underwater —a lot of that we shared with you from the stage. And in a place where we thought no life at all, we find more life, we think, and and than the tropical , which tells us that we don't know much about this at all. There's still 97 percent, and either that 97 percent is empty or just full of surprises.

But I want to jump up to water now and look at some that are positively amazing. ­—headfoots. As a kid I knew them as , mostly. This is an octopus—this is the work of Dr. Roger Hanlon at the Marine Biological Lab—and it's just how cephalopods can, with their incredible eyes, sense their , look at light, look at patterns. Here's an octopus moving across the , finds a spot to settle down, up, and then disappears into the background. Tough thing to do.

In the next bit, we're going to see a squid. These are squid. Now , when they fight, if they're really , they turn white. And these two males are fighting. They do it by their butts together, which is an interesting concept. Now, here's a male on the left and a on the right, and the male has managed to his so the female only always sees the kinder gentler squid in him. And the male . . . (Laughter) We're going to see it again. Let's take a look at it again. the coloration: white on the right, on the left. He takes a step back—so he's off the other males by splitting his body—and comes up on the other side . . . Bingo! Now I'm told that's not just a squid phenomenon with males, but I don't know. (Laughter)

(continues)