Frequency signatures: Southern Lapwing to Spinifex Hopping Mouse
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 1.945–1.968.
Southern Lapwing
Broken-Wing Distraction Lure
Feeding in the open • Screaming at anything approaching • Dragging a wing away from the nest
Because that vigilance and feeding run together through the day, it operates as a mid-frequency system.
Southern Lechwe
Hooves Made for Bounding Through Water
Splashing • Bounding • Committed
That makes it a mid-frequency system: continuously active in a medium that is itself the defence.
Southern Marsupial Mole
Sand-Swimmer Leaving No Tunnel Behind
Sand-swimming • Blind • Solitary
Because the system is steady, continuous sand-swimming, it is a mid-frequency system.
Southern Mole Cricket
Calling Loudly to Something Listening
A male calling from a burrow shaped to project his song across a field • That song used by females to find him and by a parasitoid fly with an ear built to locate it • The fly depositing larvae on or near the cricket, which burrow in and consume it, so the signal that brings mates brings the parasite on the same channel
Because the call runs at high rates, it operates as a high-frequency system.
Southern Mountain Viscacha
Sun-Warmed Cliff Sentinel
Basking • Watching • Anchored
Because their lives alternate between extended, shared basking-watch phases and sudden escape or repositioning bursts, their system is best described as bimodal: a low-frequency stone-slope stillness anchored by rocks, with a high-frequency dash mode that activates only when needed.
Southern Platyfish
A Gene Safe at Home
A pigment-cell gene in the platyfish held in check by a suppressor elsewhere in its own genome • Crossing with a swordtail bringing the gene in without that suppressor • The unrestrained gene driving pigment cells into malignant melanoma in the hybrid offspring
Because the cycle is generational, it operates as a low-frequency system.
Southern Pudu
Bamboo-Tunnel Browse Route
Small • Routed • Crepuscular
Because the system runs on steady small intake inside a protected network rather than on storage or speed, it is a mid-frequency system.
Southern Right Whale
Skim Far Away, Calve in Calm Bays
Skim-feeding • Travelling • Steady
Because the system alternates between steady feeding and a calm, reserve-funded nursery season, it is bimodal.
Southern Rockhopper Penguin
Two-Footed Rock Hopping
Hopping • Gripping • Daily
Because that commute is a steady repeated cycle rather than a single effort, it is a mid-frequency system.
Southern Screamer
Air-Filled Skin and Wing Spurs
Grazing • Carrying far • Standing
Steady grazing with constant watching makes this a mid-frequency system.
Southern Tamandua
Short Raids on Many Nests
Opening • Licking • Leaving
Many short repeated raids make this a mid-frequency system.
Southern Three-banded Armadillo
A Shell With Room to Close
Walking • Loose-shelled • Tiptoed
That makes it a bimodal system: an unhurried ordinary gait and a single complete transformation.
Southern Toad
Glands Loaded With Cardiac Poison
Sitting still when approached • Secreting a milky toxin from glands behind the eyes • Relying on the attacker releasing it rather than on escape
Since encounters recur through active periods, it operates as a mid-frequency system.
Spanish Dancer
Poison Concentrated in the Eggs
Grazing sponge • Storing toxin • Laying ribbons
Slow, continuous, low-output grazing makes it a low-frequency system.
Spanish Ribbed Newt
Pushing Its Own Ribs Through Its Skin
Aquatic • Slow • Unarmed
That makes it a bimodal system: a wholly unremarkable baseline and one extreme defensive act.
Spanish Shawl Nudibranch
Drifting Cerata Beacon
Flow-led • Signalling • Forager
Because its survival depends on this ongoing, graceful drift through food-rich habitat with a constant, conspicuous warning, the Spanish Shawl Nudibranch is a mid-frequency system built around rhythmic, continuous operation rather than extremes of stillness or explosive bursts.
Speckled Padloper Tortoise
Small Enough for the Rock Crevice
Sheltering • Crevice-bound • Inactive
That makes it a bimodal system: long spells sheltered in rock crevices and brief foraging bouts when the weather allows.
Spectacled Bear
A Bear Living on Bromeliads
Climbing • Chewing • Platformed
That makes it a low-frequency system: slow, powerful and built to use poor material.
Spectacled Caiman
Submerged Strike Lurker
Still • Hidden • Tracking
That combination of long, low-cost waiting anchored by rare, explosive capture attempts makes this a bimodal system with a dominant low-frequency surveillance mode and a short high-frequency ambush mode.
Spectacled Owl
A Juvenile Marked in Reverse
Perched • Facing • Listening
Long motionless watches with rare brief drops make this a bimodal system of low-frequency waiting and high-frequency strikes.
Spectral Tarsier
Immobile-Eye Head Swivel
Clinging • Scanning • Silent
Because motionless scanning alternates with a committed ballistic capture, this is a bimodal system.
Sperm Whale
The Stored-Breath Dive Engine
Stored • Patient • Deep-working
That makes the sperm whale a strongly low-frequency system: dense, patient and built around a reserve carried away from resupply.
Spider Monkey
A Tail That Grips
A long prehensile tail with a hairless friction pad on the underside of the tip • Ridged skin on that pad forming patterns like fingerprints and densely supplied with touch receptors • Hanging, bridging and feeding with the tail supporting the whole body weight while both hands work
Because movement is continuous, it operates as a mid-frequency system.
Spinifex Hopping Mouse
Vertical Pop-Holes to a Shared Nest
Hopping • Foraging • Nocturnal
That makes it a bimodal system: nocturnal hopping foraging and a shared, deep daytime refuge.