Frequency signatures: Flamed Tigersnail to Foxface Rabbitfish
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 817–840.
Flamed Tigersnail
Sealing the Shell, Shutting Down
Rasping lichen, fungi and decaying leaves from bark and litter • Gliding on a mucus trail • Working only while the air stays damp
Applying the structural test, a sealed animal with suspended metabolism and no exchange with its surroundings is a different architecture rather than rest within one, which makes this a bimodal system with a low-frequency dormant state.
Flamingo Tongue Snail
Coral-Chemistry Display Mantle
Ongoing • Signalled • Feeding
Because the same feeding act both gathers chemical defenses and powers a continuous visual warning, the snail runs as a steady, mid-frequency system: it must keep moving, grazing and displaying rather than alternating between long dormancy and rare bursts.
Flashlight Fish
Occlusible Bacterial Headlights
Rhythmic • Guided • Patrol
This makes their system bimodal: a mid-frequency, rhythmic blink cycle that runs most of the time, and a high-frequency, sharply switched light-control mode that is triggered by immediate opportunity or danger.
Flat Porcelain Crab
Fans Out When the Tide Comes In
Filtering • Submerged • Rhythmic
That makes it a bimodal system: rhythmic filtering while submerged and still sheltering while exposed.
Flat-backed Millipede
Segmented Shield Battery
Layered • Armoured • Chemical
Because their whole system is built to endure frequent minor challenges through persistent, low-cost protection rather than rapid bursts, flat-backed millipedes are a single-mode, low-frequency defence system.
Flat-headed Cat
Flattened Skull Built for the Waterline
Wading • Nocturnal • Fishing
That makes it a mid-frequency system: steady nocturnal hunting along the waterline.
Flat-nosed Pit Viper
Holding One Ambush Perch
Selecting a perch on a low branch or a trail edge where prey passes • Holding the same coiled position for days or weeks without feeding • Returning to that identical site after each excursion rather than searching new ground
Because the cycle runs over weeks, it operates as a low-frequency system.
Flathead Catfish
A Catfish That Refuses Carrion
Holding station in cover under logs, undercut banks and rock through the day • Hunting live fish at night by ambush rather than searching for carrion or scent trails • Taking only moving prey, so bait that works for every other catfish does not work for this one
Because hunting is nightly and prey is large, it operates as a low-frequency system.
Flathead Grey Mullet
A Gizzard in a Fish
Taking mouthfuls of sediment, algae and detritus from the bottom rather than hunting anything • Grinding it in a thick muscular pyloric stomach that works like a bird's gizzard • Passing it through a gut several times the body length to extract nutrition from very poor material
Because feeding is continuous, it operates as a mid-frequency system.
Florida Scrub-Jay
A Family Holding Fire-Kept Scrub
Caching • Burying • Recovering
The system is bimodal: steady cooperative territory life and a slower caching and recovery phase.
Flower Crab Spider
Changing Colour Over Several Days
Sitting motionless on a flower head with front legs held open • Secreting or withdrawing a yellow pigment over days to match white or yellow petals • Seizing bees and hoverflies far larger than itself
Since the cycle runs across a season, it operates as a low-frequency system.
Flower Hat Jelly
Glowing Tentacle Tips Luring Small Fish
Hovering • Luring • Stinging
Its hovering, luring routine makes it a SINGLE LOW system.
Flower Wasp
Digging Down to the Grub
A female burrowing through soil in search of a scarab beetle larva • Stinging it where it lies to paralyse it permanently • Building a small cell around the grub in the soil and laying an egg on it there rather than moving it
Because the cycle runs seasonally, it operates as a low-frequency system.
Flowerhorn Cichlid
A Signal Bred Too Far
Holding and patrolling a space • Displaying a fluid-filled forehead mass laterally at anything approaching • Settling contests by size rather than by fighting
Since displays recur through the day, it operates as a mid-frequency system.
Flying Dragon
Wing Held in Its Own Hands
Climbing the trunk • Launching • Landing on the next one
Steady daily foraging and crossing makes this a mid-frequency system.
Flying Gurnard
Seafloor Wing-Flare Apparatus
Sheltered • Grounded • Stalking
The system therefore runs on a low-frequency, shelter-led baseline punctuated by short, high-frequency startle displays that only appear when risk or opportunity peaks, making this a bimodal pattern.
Forest Wagtail
A Tail That Swings Sideways
A tail swung from side to side in a horizontal arc rather than pumped up and down • That movement maintained almost continuously while the bird walks on the forest floor • Insects flushed from leaf litter by the disturbance and taken as they move
Because the movement is continuous, it operates as a mid-frequency system.
Fork-tailed Drongo
False Alarms That Make Others Drop Food
Sallying • Accompanying • Warning
That makes it a bimodal system: steady sentinel foraging and brief bursts of theft.
Fossa
Tail-Braced Trunk Pursuit
Chasing • Climbing • Wide-ranging
Because the system converts sustained three-dimensional pursuit into regular returns, it is a mid-frequency system.
Four-horned Antelope
Water-Tethered Solitary Range
Solitary • Drinking • Daily
Since the pattern is a steady daily circuit rather than rare bursts or long dormancy, it is a mid-frequency system.
Four-lined Whiptail Lizard
Hunting by Tasting the Air
Moving almost continuously through vegetation and litter rather than waiting on a perch • Flicking the tongue repeatedly to collect molecules and deliver them to the vomeronasal organ • Locating hidden and buried prey by chemical trace rather than by seeing it move
Because the sampling is nearly continuous, it operates as a high-frequency system.
Fox Moth
Overwintered Larva, Sealed Pupa
Banked • Dormant • Sealed
One long feeding season funds a winter of waiting, a sealed pupal stage and a short adult life, so energy moves in a single slow arc of banking and spending, and that arc is what makes this a low-frequency system.
Fox Squirrel
Caching by Sprouting Speed
Handling each acorn and assessing it • Eating the ones that germinate quickly and will be worthless by winter • Burying the ones whose dormancy lets them keep
Since nuts are handled continuously, it operates as a mid-frequency system.
Foxface Rabbitfish
Switching Between Two Patterns
A clean bright yellow body with a sharply marked black and white face, held while actively grazing in daylight
Aquarists who see the change at lights-out routinely think the fish is sick, so it operates as a bimodal system.