1. Hyacinth macaws need hard-shelled nuts in their diets, such as palm nuts.

2. The Analysis indicates that hard-shelled freshwater turtles on Hainan Island have high conservation priority.

3. The round, hard-shelled nuts of the macadamia tree grow in clusters and are covered with husks what split when the nuts are ripe.

4. Meanwhile, in one part of Iraq, hard-shelled trucks called MRAPs (mine-resistant, ambush-protected) had withstood hundreds of attacks without a single US fatality.

5. Have you ever wondered how those hard-shelled mollusks known as mussels anchor themselves to rocks on lake and river bottoms?

6. Their skin splits and rolls down revealing a smooth, brown hard-shelled object, the pupa.

7. For instance, some chimp populations have invented a means of cracking open a nutritious but hard-shelled nut, while other communities haven't.

8. Reaching 5 feet (1.5 meters) long, wolffish have conspicuous dentition suited to a diet of hard-shelled mollusks, crabs, and sea urchins.

9. Plants have to literally be drenched (particularly if harboring hard-shelled beetles) daily in rotenone, while malathion can be used sparingly, and needs to be applied only occasionally.