The lotus leaf is covered with bumps 10–20 µm tall, each coated in wax crystals. Water beads up at contact angles above 160° and rolls off, carrying dirt with it. A façade paint based on this structure reached the market in 1999.
Inside an African termite mound the air stays near 31 °C while the outside swings between 3 and 42 °C. The Eastgate Centre in Harare copies the mound’s chimney ventilation and runs on about 10% of the cooling energy of a comparable building.
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The lotus leaf is covered with bumps 10–20 µm tall, each coated in wax crystals. Water beads up at contact angles above 160° and rolls off, carrying dirt with it. A façade paint based on this structure reached the market in 1999.
Last updated on 2026-08-21 by PHYLLO Rangers
Inside an African termite mound the air stays near 31 °C while the outside swings between 3 and 42 °C. The Eastgate Centre in Harare copies the mound’s chimney ventilation and runs on about 10% of the cooling energy of a comparable building.
Last updated on 2026-08-07 by PHYLLO Rangers
Abalone nacre stacks aragonite tablets about 0.5 µm thick with thin protein layers, like bricks and mortar. Although it is mostly brittle mineral, its fracture toughness is roughly 3,000 times that of the pure crystal.
Last updated on 2026-07-24 by PHYLLO Rangers
Some orb-weaving spiders add bands that reflect ultraviolet light to their webs. Birds see UV and steer around them. Architectural glass with a pattern visible to birds but clear to people appeared in 2006.
Last updated on 2026-07-10 by PHYLLO Rangers
A Namib Desert beetle collects water from morning fog on its back. Droplets form on water-loving bumps and, once heavy, roll down waxy grooves to its mouth. Fog nets built on this idea gather several litres per square metre per day.
Last updated on 2026-06-26 by PHYLLO Rangers
A woodpecker strikes wood more than 20 times per second, and its head decelerates at over 1,000 g. The beak, hyoid bone and spongy bone share the load. Shock absorbers modelled on this have been studied for protecting flight recorders.
Last updated on 2026-06-12 by PHYLLO Rangers
Mussels anchor themselves to wave-washed rock with fine threads called byssus. The proteins at the thread tips are rich in DOPA, which sticks to wet surfaces. Adhesives based on it are being studied as an alternative to surgical sutures.
Last updated on 2026-05-29 by PHYLLO Rangers
Sunflower seeds follow a spiral in which each seed is turned 137.5° from the last. In 2012 researchers re-planned a Spanish solar-thermal plant’s mirror field on this pattern. Land use fell by 15.8% and mirrors shaded each other less.
Last updated on 2026-05-15 by PHYLLO Rangers
The boxfish has a rigid, box-shaped body of bony plates yet swims steadily. In 2005 a carmaker presented a concept car based on its shape, with a drag coefficient of 0.19.
Last updated on 2026-05-01 by PHYLLO Rangers
Bats emit ultrasound and read the echoes to sense their surroundings. In 2004 a team at the University of Leeds put this into a white cane that signals obstacles ahead and at head height through vibrations in the handle.
Last updated on 2026-04-17 by PHYLLO Rangers
The eyes of night-flying moths are covered with bumps about 200 nm apart. They cut reflection so predators see the eyes less. Films based on this bring reflectance below 1%.
Last updated on 2026-04-03 by PHYLLO Rangers
A maple seed spins on its single wing and falls slowly because the rotation keeps a vortex on the leading edge. In 2021 a Northwestern University team used the principle to build 1 mm flying sensors.
Last updated on 2026-03-20 by PHYLLO Rangers
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Last updated on 2026-08-21 by PHYLLO Rangers
The lotus leaf is covered with bumps 10–20 µm tall, each coated in wax crystals. Water beads up at contact angles above 160° and rolls off, carrying dirt with it. A façade paint based on this structure reached the market in 1999.
From the 1970s, botanist Wilhelm Barthlott examined around 10,000 plant surfaces under the electron microscope. In 1997 he described why lotus leaves stay clean and named it the lotus effect.
The bumps sit 10–15 µm apart and carry wax crystals about 1 µm across. A droplet touches only the tips, so just 2–3% of its base meets the leaf.
Paint that combines micro-rough particles with water-repellent binders lets rain wash the wall. The same idea later moved to glass, textiles and solar-panel coatings.
Reference:
Barthlott, W., & Neinhuis, C. (1997). Purity of the sacred lotus, or escape from contamination in biological surfaces. Planta, 202, 1–8.
Last updated on 2026-08-07 by PHYLLO Rangers
Inside an African termite mound the air stays near 31 °C while the outside swings between 3 and 42 °C. The Eastgate Centre in Harare copies the mound’s chimney ventilation and runs on about 10% of the cooling energy of a comparable building.
A chimney links the underground nest to the top of the mound, and small pores cover its walls. Warm air rises and leaves by day; cool air enters through low passages at night.
Architect Mick Pearce applied this cycle to the Eastgate Centre, completed in 1996. Night air cools a heavy concrete floor, and 48 chimneys release warm air during the day.
The building has no conventional air-conditioning. In its first five years it was reported to use about 90% less energy than similar buildings in the city.
Reference:
Turner, J. S., & Soar, R. C. (2008). Beyond biomimicry: What termites can tell us about realizing the living building.
Last updated on 2026-07-24 by PHYLLO Rangers
Abalone nacre stacks aragonite tablets about 0.5 µm thick with thin protein layers, like bricks and mortar. Although it is mostly brittle mineral, its fracture toughness is roughly 3,000 times that of the pure crystal.
Nacre is 95% aragonite, a form of calcium carbonate; the other 5% is protein and chitin. The organic layers between tablets are 20–30 nm thick.
A crack has to zig-zag around the tablets and loses energy on the way. When tablets slide, the protein layers stretch and absorb the load.
Layered ceramic composites, armour materials and bone substitutes have been modelled on this structure.
Reference:
Jackson, A. P., Vincent, J. F. V., & Turner, R. M. (1988). The mechanical design of nacre. Proc. R. Soc. Lond. B, 234, 415–440.
Last updated on 2026-07-10 by PHYLLO Rangers
Some orb-weaving spiders add bands that reflect ultraviolet light to their webs. Birds see UV and steer around them. Architectural glass with a pattern visible to birds but clear to people appeared in 2006.
The zig-zag band woven into the centre of some webs is called a stabilimentum. It reflects ultraviolet light strongly.
Most birds perceive wavelengths between 300 and 400 nm, a range the human eye barely detects.
Glass with a web-like UV-reflective coating looks ordinary to people. In flight-tunnel tests birds avoided it more often than standard glass.
Reference:
Blackledge, T. A. (1998). Stabilimentum variation and foraging success in Argiope aurantia and Argiope trifasciata. Journal of Zoology, 246, 21–27.
Last updated on 2026-06-26 by PHYLLO Rangers
A Namib Desert beetle collects water from morning fog on its back. Droplets form on water-loving bumps and, once heavy, roll down waxy grooves to its mouth. Fog nets built on this idea gather several litres per square metre per day.
On foggy mornings the beetle climbs a dune, lowers its head and tilts its back into the wind.
The bump tips attract water while the wax-covered areas between them repel it. Droplets grow on the tips and roll off when heavy enough.
Meshes and films that alternate hydrophilic and hydrophobic areas are being tested in foggy dry regions such as Chile and Morocco.
Reference:
Parker, A. R., & Lawrence, C. R. (2001). Water capture by a desert beetle. Nature, 414, 33–34.
Last updated on 2026-06-12 by PHYLLO Rangers
A woodpecker strikes wood more than 20 times per second, and its head decelerates at over 1,000 g. The beak, hyoid bone and spongy bone share the load. Shock absorbers modelled on this have been studied for protecting flight recorders.
The beak is hard yet slightly flexible, the hyoid wraps around the skull like a sling, and the spongy bone inside the skull is full of pores.
In 2011 researchers rebuilt the layers with metal and glass beads. Electronics packed inside survived shocks of about 60,000 g.
Helmet liners, packaging for precision instruments and sports protection are being studied with the same principle.
Reference:
Yoon, S.-H., & Park, S. (2011). A mechanical analysis of woodpecker drumming and its application to shock-absorbing systems. Bioinspiration & Biomimetics, 6, 016003.
Last updated on 2026-05-29 by PHYLLO Rangers
Mussels anchor themselves to wave-washed rock with fine threads called byssus. The proteins at the thread tips are rich in DOPA, which sticks to wet surfaces. Adhesives based on it are being studied as an alternative to surgical sutures.
A single mussel spins 50–100 threads, each ending in an adhesive plaque about 2 mm across.
DOPA displaces water and bonds to metal, glass and plastic. In some plaque proteins it makes up 30% of all amino acids.
DOPA-containing polymers stick even to bleeding tissue. They have been tested in animals for vessels, foetal membranes and bone.
Reference:
Lee, H., Dellatore, S. M., Miller, W. M., & Messersmith, P. B. (2007). Mussel-inspired surface chemistry for multifunctional coatings. Science, 318, 426–430.
Last updated on 2026-05-15 by PHYLLO Rangers
Sunflower seeds follow a spiral in which each seed is turned 137.5° from the last. In 2012 researchers re-planned a Spanish solar-thermal plant’s mirror field on this pattern. Land use fell by 15.8% and mirrors shaded each other less.
137.5° divides a circle in the golden ratio. Seeds placed at this angle leave the smallest gaps.
The team moved all 624 mirrors around the tower onto a sunflower spiral, packing them closer near the tower.
The same output needed 15.8% less land, and reduced shading raised efficiency by 0.36 percentage points.
Reference:
Noone, C. J., Torrilhon, M., & Mitsos, A. (2012). Heliostat field optimization: A new computationally efficient model and biomimetic layout. Solar Energy, 86, 792–803.
Last updated on 2026-05-01 by PHYLLO Rangers
The boxfish has a rigid, box-shaped body of bony plates yet swims steadily. In 2005 a carmaker presented a concept car based on its shape, with a drag coefficient of 0.19.
Hexagonal bony plates join into a hard shell; only the fins and tail move.
Vortices from the body edges were thought to push the fish back when it tilts. Later studies found the effect smaller than first reported.
The concept car kept a roomy cabin and reached a drag coefficient of 0.19, against about 0.3 for typical cars of the time.
Reference:
Van Wassenbergh, S., et al. (2015). Boxfish swimming paradox resolved. J. R. Soc. Interface, 12, 20141146.
Last updated on 2026-04-17 by PHYLLO Rangers
Bats emit ultrasound and read the echoes to sense their surroundings. In 2004 a team at the University of Leeds put this into a white cane that signals obstacles ahead and at head height through vibrations in the handle.
Bats call at 20–200 kHz and judge distance and size from the timing and strength of the echo.
Two ultrasonic transducers in the handle scan about 4 m ahead and at head height. Two buttons vibrate harder as obstacles come closer.
Users can detect branches and signs at head height, which a standard cane misses.
Reference:
Hoyle, B., & Waters, D. (2008). Mobility AT: The Batcane (UltraCane). Springer.
Last updated on 2026-04-03 by PHYLLO Rangers
The eyes of night-flying moths are covered with bumps about 200 nm apart. They cut reflection so predators see the eyes less. Films based on this bring reflectance below 1%.
The spacing is shorter than visible wavelengths, so light sees no sharp boundary; the refractive index changes gradually from air to cornea.
Plain glass reflects about 4%. Moth-eye films reduce this to 0.1–1%.
Display protectors, camera lenses and solar-panel surfaces use the structure.
Reference:
Clapham, P. B., & Hutley, M. C. (1973). Reduction of lens reflexion by the “Moth Eye” principle. Nature, 244, 281–282.
Last updated on 2026-03-20 by PHYLLO Rangers
A maple seed spins on its single wing and falls slowly because the rotation keeps a vortex on the leading edge. In 2021 a Northwestern University team used the principle to build 1 mm flying sensors.
The seed descends at about 1 m/s and can drift more than 100 m from the tree in wind.
A vortex attached to the front of the spinning wing lowers pressure above it — the same mechanism insects use.
The team built sensors that spread widely when dropped, for collecting air-quality and weather data.
Reference:
Kim, B. H., et al. (2021). Three-dimensional electronic microfliers inspired by wind-dispersed seeds. Nature, 597, 503–510.