hard-shelled

When it comes to cracking open hard-shelled prey, sea otters are remarkably resourceful.

The hunched, hard-shelled, butterscotch-colored nymphs that first emerge from the ground are easy to scoop up as they scurry.

Their research, recently published in New Phytologist, unveils the genetic diversification and population history of this hard-shelled plant that was used to make bottles, instruments, and containers for over 10,000 years by ancient civilizations.

I imagined pulling back my hand, taut like a slingshot, and then launching the hard-shelled bombs at my rival.

The shells of the large, hard-shelled clam were used by the indigenous Narragansett people as wampum.