In The Time of Dinosaurs

I fired an echolocation burst. Fish. A pair of distant whales. No dolphins. Although if they were floating on the surface they might not show up.
<I have an idea,> Marco said. <We dive down, then look up. They should be silhouetted against the sun.>
<Good idea. Only it's raining. There's no . . .> I'd been about to say there was no sun. But the golden rays were piercing the water around me.
<Must have cleared up. Man, we may have been out a long time.>
We dove down deep. We looked up. And there, outlined against the sun, were four tapered shapes.
<Come on,> I said and shot toward them. I bonked one of them with my nose.