footprint

Acting like faint biological footprints left in the sea, it detects fragments of genetic material floating in the water to reveal where the sharks have been.

Fung-wong, expected to be a "super typhoon" before making landfall, bears a huge footprint, with a radius that could cover "almost the entire country," a government meteorologist said.

But the two have one thing in common: Both have grown their store footprint by nearly 20% over the past 12 months.

They found footprints leading to and from the perimeter of the airfield.

These days, the soil would thaw by midsummer, and Roz left behind a trail of deep footprints in the spongy, soggy ground.