Selaginella lepidophylla // (syn. Lycopodium lepidophyllum) is a species of desert plant in the spikemoss family (Selaginellaceae). S. lepidophylla is noted for its ability to survive almost complete desiccation; during dry weather in its native habitat, its stems curl into a tight ball and uncurl when exposed to moisture. It is native to the Chihuahuan Desert.

Shape memory alloy// A shape-memory alloy (SMA) is an alloy that "remembers" its original shape and that when deformed returns to its pre-deformed shape when heated.

Cerebral Cortex// In large mammals the surface of the cerebral cortex is folded, giving a much greater surface area in the confined space of the skull. The higher amount of folds shows the greater development of the brain.

Most of our brain is cerebral cortex- our thinking mind- a highly folded surface of at least two and half thousand square centimetres.

Bird Anatony// The bird skeleton is highly adapted for flight. It is extremely lightweight but strong enough to withstand the stresses of taking off, flying, and landing.

Pine Cone // After ripening, the opening of non-serotinous pine cones is associated with their moisture content—cones are open when dry and closed when wet.