Case protects during years at seaPolynesian box fruit
The seeds of the Polynesian box fruit are protected from damage as they drift on ocean currents via a tough seed case.
Vein system resilient to damageplants
The vein systems in some plant leaves are resilient to damage because they contain a high density of closed, interconnected loops.
Surface cells store waterice plant
The leaves of ice plants store water in surface bladder-like cells.