Frequency signatures: Andean Condor to Argali
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 73–96.
Andean Condor
Ridge-Lift Flapless Soaring
Soaring • Flapless • All day
Because the system runs continuously at almost no cost, it is a low-frequency system.
Andean Goose
High-Affinity Blood, Ground Grazing
Walking • Grazing • Unbothered
Steady, repeated, unhurried foraging through the day makes this a mid-frequency system.
Andean Lapwing
Broad Wings for Thin Air
Running • Stopping • Picking
That makes it a mid-frequency system: steady walking and picking in a medium that charges more for every wingbeat.
Andean Mountain Cat
A Hunter Tied to Viscacha Rocks
Solitary • Searching • Rock-bound
That makes it a bimodal system: long solitary searching and brief, fast attacks.
Andean Sparrow
Song-Drawn Boundary Grid
Rhythmic • Signalling • Patrol
That pattern of ongoing, coordinated signalling makes this a mid-frequency system built around a sustained broadcast rhythm.
Anegada Rock Iguana
Basking-Fuelled Leaf Digestion
Basking • Fermenting • Decadal
Because a low-cost body converts poor food into size over very long periods, it is a low-frequency system.
Angulate Tortoise
Single Gular Ramming Prong
Armoured • Sun-timed • Slow
A slow, armoured life budget with brief, forceful bouts of combat produces two operating modes: low-frequency living and high-frequency fighting.
Anhinga
Neck Above, Body Below
Sunken • Hinged • Spearing
That makes it a low-frequency system: quiet, submerged and built around a single release.
Ankole-Watusi Cattle
Radiators Worn as a Crown
Grazing • Heat-shedding • Displaying
That makes it a bimodal system: steady heat-managed grazing and slow cud-chewing rest.
Annam Pond Turtle
Surviving Only in Captivity
A wild population reduced to almost nothing by collection for trade • Managed breeding groups held in Vietnam and abroad carrying nearly the whole gene pool • Offspring produced under management rather than in the marshes the species came from
Because the timescale is generational, it operates as a low-frequency system.
Ant-mimicking Spider
Segmented Ant Illusion
Ongoing • Deceptive • Blending
That produces a mid-frequency system: not a slow reserve engine or a single dramatic switch, but a steady, ongoing rhythm of deceptive signaling woven into daily activity.
Antarctic Petrel
Commuting From Nunataks to the Ice Edge
Commuting • Surface-feeding • Flocking
That makes it a bimodal system: long-range ocean foraging and enduring colony incubation.
Apostlebird
A Group That Cannot Divide
Living permanently in a group of about a dozen • Building one mud nest that all members attend • Foraging, roosting and moving as a single unit year round
Since the cycle turns over annually, it operates as a low-frequency system.
Apple Snail
A Gill Beside a Lung
Breathing through a gill while submerged • Grazing plant material underwater • Sealing the shell with an operculum when disturbed
Applying the structural test, these are two respiratory architectures, making it a bimodal system.
Arabian Oryx
Letting Body Heat Rise to Save Water
Nomadic • Heat-storing • Water-thrifty
Because it is built on slow, water-saving movement and rest, it is a low-frequency system.
Arabian Sand Boa
Dorsal-Eye Sand Burial
Buried • Watching • Minimal
Because the system replaces activity with burial in a medium that provides both shelter and concealment, it is a low-frequency system.
Arapaima
Lung-Bladder Surface Breath
Surfacing • Armoured • Rhythmic
Because the whole system runs on a regular obligatory cycle, it is a mid-frequency system.
Archerfish
Jet Gathered Into One Blob
Aiming • Firing • Intercepting
Fast, committed, repeated attempts make this a single high-frequency system.
Arctic Char
Lake-Set Life-History Switching
Landlocked • Dwarfed • Resident
Because the same system reconfigures itself to its context rather than running one way, it is an adaptive system.
Arctic Fox
Tundra Molt Camouflage
Blended • Careful • Concealing
That combination of a slow seasonal molt and ongoing, season-tuned activity makes the Arctic fox a bimodal LOW-plus-MID frequency system.
Arctic Ground Squirrel
Supercooled Burrow Engine
Frozen • Deep • Minimal
The result is a bimodal rhythm: long stretches of ultra-low activity in a prepared place, anchored by a shorter, moderate, repeatable season of foraging and rebuilding that reloads the system for the next freeze.
Arctic Hare
Snow-Camouflage Burst Engine
Still • Hidden • Coiled
Because the body is built around a contrast between extended stillness and brief, intense escape runs, the Arctic hare operates as a bimodal system: a low-frequency camouflage-and-rest mode anchored to the snow, and a high-frequency sprint mode that is triggered only when danger forces it to spend.
Arctic Tern
The Long Way Round Is Cheaper
Leaving the Arctic • Tracing an S down the Atlantic • Arriving south
Sustained travel and feeding makes this a mid-frequency system.
Argali
Open-Slope Grazers with Colliding Horns
Grazing • Watchful • Open-country
That makes it a bimodal system: vigilant open-country grazing and violent rutting clashes.