Or perhaps they sensed further helpless prey not too far away.

Maybe it sensed the flying things as rivals, or prey.

The antennae can reach up to 6 cm long and are used to sense prey, food, and a mate that may be nearby.

They sense prey by detecting smell through the water.

Stile backed off warily, but the dragon followed, sensing compatible prey.

The leader of the gang, sensing new prey, turned and sneered.

But according to scientists who study complex systems, a single principle is involved in climate change, sensing prey in murky water and balance.

Pointed noses twitched in the damp air, sensing prey.

He had been screaming in pain and terror, unable to drive away the crow, which had sensed weak prey.

Or the hunting cry of a predator who sensed injured prey waiting, his for the taking?