Frequency signatures: Six-spotted Tiger Beetle to Snow Petrel
Each card gives a species’ behavioural archetype, its frequency — how often it commits effort and how long each commitment lasts — and a waveform tracing that rhythm.
Frequency signatures
Each waveform traces one species’ working rhythm — where it spends effort, and where it waits. 2,327 species, A–Z; showing 1,897–1,920.
Six-spotted Tiger Beetle
Staccato Sprint Tracker
Explosive • Blinding • Pursuit
Because its whole hunting system depends on alternating blinding speed with brief mid-frequency resets, this beetle is a bimodal system built from a high-frequency burst mode interlocked with a mid-frequency pause-and-aim mode.
Skeleton Panda Sea Squirt
One Body Plan, Budded Many Times
Budding • Colonial • Repeating
That makes it a bimodal system: slow colonial growth by budding and continuous filter pumping.
Skeleton Shrimp
A Stick Body Anchored by Hind Claws
Clinging • Swaying • Filtering
The system is bimodal: long anchored feeding and brief male competition.
Skipper Butterfly
Darting Sorties From a Sunlit Perch
Darting • Erratic • Rapid
The adult system is bimodal: bursts of rapid, frequently corrected flight separated by still, watchful perching.
Slender Sea Spider
Hydroid Canopy Walker
Lightfoot • Cryptic • Patient
This architecture produces a low-frequency system: continuous, cautious, low-amplitude activity built for persistence and minimal disturbance rather than fast bursts or large excursions.
Slender Skimmer
Predictive Intercept Flight
Intercepting • Rapid • Visual
That makes it a high-frequency system: fast, reactive and organised around many brief precise events.
Sloane's Viperfish
Bioluminescent Ambush Jaws
Hidden • Waiting • Anchored
This pattern of extended low-activity waiting punctuated by very short, intense attacks makes the viperfish a bimodal system with a dominant low-frequency ambush mode and a defining high-frequency strike mode.
Sloth Bear
Incisor-Gap Suction Bellows
Digging • Blowing • Sucking
Because value is assembled from many repeated extraction bouts, it is a mid-frequency system.
Small Branded Swift
A Body Too Heavy
Short narrow wings carrying a thick heavily muscled body, giving very high wing loading for a butterfly • Wingbeats fast enough to blur, with no capacity to glide or soar at all • Flight that is extremely fast and abruptly directional, darting between perches rather than flapping across open ground
Because the beat is continuous, it operates as a high-frequency system.
Small Buttonquail
Cryptic Ground Forage Circuit
Rhythmic • Covered • Grounded
This makes them a mid-frequency system: a continuous, repeatable operating loop that turns one piece of ground into many roles without leaving the grass.
Small Cabbage White
Defusing the Mustard Oil Bomb
Feeding on brassica leaves that release mustard oils when damaged • Redirecting that reaction in the gut with a nitrile-specifier protein • Excreting harmless nitriles instead of the toxic isothiocyanates
Since generations turn over in weeks, it operates as a high-frequency system.
Small Indian Civet
A Gland That Writes on the Landscape
Marking • Solitary • Overlapping
That makes it a mid-frequency system: steady patrolling and continuous chemical marking.
Smalltooth Sawfish
Electro-Sensing Rostral Slash
Settled • Sensing • Hours
Because it needs both the long sensing wait and the instant slash, it is a bimodal system.
Smew
Backward Serrations on a Thin Bill
Diving • Gripping • Surfacing
Repeated diving through the day makes this a mid-frequency system.
Smooth Ground Beetle
Wing Cases Fused Shut
Carrying elytra fused into a single rigid shell with no wings beneath • Walking everywhere it goes • Being unable to cross a road, a field or a clearing that a flying beetle would not notice
Since the cycle runs across years, it operates as a low-frequency system.
Smooth Newt
A Crest Grown Only for the Pond
Aquatic • Crested • Displaying
That makes it a bimodal system: a short built-up aquatic phase and a long plain terrestrial one.
Smooth-coated Otter
A V-Formation Driving Fish Ahead
Formation • Herding • Synchronised
That makes it a high-frequency system: continuously active and continuously coordinated.
Snail
A Toothed Ribbon Never Spent
Drawing a chitinous ribbon carrying thousands of teeth across a surface • Wearing the front rows away as it works • Growing replacements continuously from the back so the working edge is always new
Since rasping repeats many times a minute, it operates as a mid-frequency system.
Snakefly
A Lengthened Prothorax That Lifts the Head
Hidden • Predatory • Slow-developing
That makes it a phase-change system: a long hidden larval stage and a brief adult one.
Snow Bunting
Cold-Plain Foraging Circuit
Rhythmic • Grounded • Circuit
The system depends on both the steady ground circuit and these rapid flares of activity, making the Snow Bunting a bimodal animal with a rhythmic mid-frequency baseline and a triggered high-frequency escape mode.
Snow Goose
Learned Flyway Relay
Migrating • Taught • Staged
That makes the snow goose a mid-frequency system: rhythmic, collective and dependent on a route that is taught rather than found.
Snow Leopard
Broken-Terrain Downhill Ambush
Stalking • Hidden • Days
Because it needs both the long invisible approach and the brief committed strike, it is bimodal.
Snow Partridge
Barred Plumage Matching Scree and Snow
Foraging • Covey • Cryptic
That makes it a bimodal system: slow cryptic foraging and explosive downhill escape.
Snow Petrel
A Seabird Bound to the Pack Ice
Pack-ice • Surface-feeding • Crevice-nesting
Because it is built on steady foraging among the ice, it is a mid-frequency system.