Learn how to draw a spiral staircase lobby in perfect perspective. Follow this step-by-step architectural sketching tutorial to improve your drawing skills. #Architecture #ArchitecturalDrawing ...

An unusual arrangement of leaves in a 407-million-year-old fossilized plant is complicating scientists’ understanding of plant evolution. Most land plants living today have spiral patterns involving ...

It has long been observed that many plants produce leaves, shoots, or flowers in spiral patterns. Cauliflower provides a unique example of this phenomenon, because those spirals repeat at several ...