Limb shedding assists escapestarfish
The limbs of a starfish assist escape because they can be shed.
Structure and shape provide flexibilityvines
Architecture of vines increases flexibility via soft tissue components and ribbon-like shape.
Joints have two degrees of bending freedomarthropods
The joints of some arthropods have two degrees of bending freedom (up-down and left-right) thanks to two 1-degree bending joints found at right angles to each other.