Spirals

Spiral forms occur in many guises in nature, in both plants and animals. The most common kind is the logarithmic spiral which expands evenly as it rotates; cylindrical spirals can also be found.

See D'Arcy Thompson's On Growth and Form, and other books on natural patterns

Pea Tendril, Logarithmic Spiral (11k)	Ammonite Chambers: 2-Dimensional Spiral (33k)	Cope Chest: 2-Dimensional Spirals (491k)	Whelk: 3-Dimensional Spiral (39k)	Bindweed: Cylindrical Spiral (23k)
Fircone: 3-Dimensional Spiral, top (61k)	Fircone: 3-Dimensional Spiral, base (105k)	Maritime Pine : cone, 3-D Spiral, top (126k)	Pinecone nibbled by Red Squirrel (13k)	Red Cabbage Spiral (49k)
Succulent Spiral (125k)	Palm Trunk (84k)		Banana Stack (18k)

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