1.   Eventually divers provided first hand evidence that sea otters use rocks as hammers under water to dislodge the abalones.

2.   Only instead of extracting oxygen from water, they use rock.

3.   Among the many projects that used Palisades rock were the cobbling of New York City streets and the building of the New Orleans breakwater.

4.   But I had always used rocks too small.

5.   Cadmus used a rock to dispatch his dragon.

6.   Crowe has always used rock not merely as soundtrack decoration but also as a window into the souls of his characters.

7.   Even today, when some Christian musicians use rock to praise Jesus, older evangelicals tend to be unimpressed.

8.   He is teaching stone knapping, using rocks to fashion cutting and scraping tools out of basalt and obsidian.

9.   Later, tribes such as the Comamche, Apache and Tonkawa used the rock as a base.

10.   Or an entire convention of pelicans using the rocks at the end of the pier as their private base of airborne operations.