Frequency signatures: Greenland Shark to Harlequin Beetle
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 1,033–1,056.
Greenland Shark
Everything Slowed by Permanent Cold
Swimming at under a metre a second in near-freezing water • Growing about a centimetre a year • Not breeding until past a century old
Since a generation takes a century, it operates as a low-frequency system.
Grevy's Zebra
Territories Held Around Water
Males holding large territories containing water • Females moving freely across them • Mating decided by where the water is rather than by herding
Since territories are held across seasons, it operates as a low-frequency system.
Grey Crowned Crane
Dance Kept Running All Year
Walking • Bowing • Leaping
Continuous social signalling alongside steady foraging makes this a mid-frequency system.
Grey Field Slug
Hydrated Shelter Forager
Sheltered • Moist • Foraging
Because the whole animal is built around staying within a safe moisture envelope and only venturing out in low-risk windows, the grey field slug is a strongly low-frequency system centered on sheltered, moisture-led retreat.
Grey Seal
Blubber-Funded Fast
At sea • Diving • Loading
That makes it a bimodal system: a long steady accumulation and a short total expenditure.
Grey-crowned Babbler
Young That Stay and Help
Retaining grown offspring in the group rather than dispersing them • Sharing nest building, feeding and defence across all members • Recruiting the same helpers into the next season
Since the cycle turns over annually, it operates as a low-frequency system.
Greylag Goose
Route-Bonded Vocal Flock
Rhythmic • Coordinated • Route-led
This creates a mid-frequency system built on rhythmic, repeated group movement and communication: coordinated, route-led activity rather than rare bursts or deep reserve use, so Greylag Goose is classified as a SINGLE, MID-frequency pattern.
Grizzly Bear
Carnivore Gut, Seasonal Route
Ranging • Digging • Timing windows
A long active circuit funding a deep shutdown makes this a bimodal system, mid-frequency in season and low-frequency in the ground.
Groundhog
A Solitary Winter Alone
Feeding almost continuously through summer • Converting grass and crops into fat • Digging and maintaining a burrow system alone
Applying the structural test, these are two physiologies, making it a bimodal system.
Guanaco
Blood That Holds Oxygen Tighter
Grazing • Oxygenated • Sentried
That makes it a mid-frequency system: steady, sustainable and continuously watched.
Guianan Cock-of-the-rock
A Few Males Take Almost Everything
Clearing a court • Displaying on the ground • Mostly failing
Continuous daily display and feeding makes this a mid-frequency system.
Guinea Pig
Run-Ready Newborn Herding
Grazing in a group • Calling constantly • Young running the first day
Because the grazing and the calling run continuously, it operates as a mid-frequency system.
Guira Cuckoo
One Nest, Several Mothers, Eggs Thrown Out
Communal • Competing • Noisy
That makes it a mid-frequency system: continuously social, continuously contested.
Guppy
Colour Retuned by Predators
Carrying male colour patterns that vary with local predation • Maturing earlier and smaller where predators are abundant • Producing measurably different populations within a handful of generations
Since generations turn over in weeks, it operates as a high-frequency system.
Hackberry Emperor
Drinking Sweat Instead of Nectar
Ignoring flowers almost entirely • Feeding on sap runs, rotting fruit, dung, carrion and the sweat of animals including people • Extracting sodium and nitrogen that a nectar diet cannot supply
Since feeding visits recur constantly, it operates as a mid-frequency system.
Hairy Frogfish
A Wriggling Worm Lure Over a Huge Gape
Luring • Disguised • Stationary
That makes it a bimodal system: long stationary luring and a sudden suction strike.
Hamadryas Baboon
Cliff-led Troop Choreography
Rhythmic • Coordinated • Ordered
This produces a strongly mid-frequency system: continuous, rhythmic troop-ordering activity that keeps signals, rank and movement clear enough to prevent chaos.
Hamilton's Frog
Direct Development Without Tadpoles
Terrestrial • Guarded • Silent
Because the animal moves rarely and produces very few young, it is a low-frequency system.
Hammerkop
A Nest Far Larger Than the Bird
Wading • Modest • Unremarkable
That makes it a bimodal system: an ordinary feeding baseline and a vastly disproportionate construction effort.
Happy-face Spider
Microscale Marking Display
Subtle • Persistent • Noticed
This produces a mid-frequency system: the signal is continuously present and ready, but its impact depends on intermittent moments of visual contact rather than rare deep reserves or rapid bursts.
Harbor Porpoise
Clicks Pitched Above Orca Hearing
Clicking • Scanning • Never stopping
Unbroken low-drama foraging makes this a mid-frequency system.
Harbor Seal
Whiskers Reading the Wake
Hunting • Tracking • Blind-capable
That makes it a bimodal system: a working phase and a resting phase, alternating on an external schedule.
Hard-lipped Barb
Keratin Scraping Mouthplate
Rhythmic • Surface • Forager
This creates a mid-frequency operating pattern: not about deep reserves or single big strikes, but about ongoing, coordinated movement and repeated, moderate-effort scrapes that turn a broad, thinly coated surface into a reliable flow of nutrition.
Harlequin Beetle
Canopy Span Climber
Extended • Bridging • Stable
That makes this a mid-frequency system built on rhythmic, leveraged extension across surfaces.