1.   They are all covered with sharp spines and have the ability to inflate their bodies by gulping air or water.

2.   As musicians pluck the sharp spines, the sonic signals are sent to a digital-effects processor, which gradually elongates the notes and expands them harmonically.

3.   Helms has run into bridges, a golf cart, a dead deer and the sharp spines of catfish underwater, but he never has been seriously injured.

4.   Their backs and the tops of their heads are covered with sharp spines.

5.   The vines have green woody stems that are armed with sharp spines that easily tear your clothes and you.

6.   Another discovery was a pink-nosed, black-tailed dwarf porcupine, with deceptively fluffy pale hair covering sharp yellow spines.