Frequency signatures: Yellow-legged Nomad Bee to Zorilla
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 2,305–2,327.
Yellow-legged Nomad Bee
Stealth Brood Infiltrator
Timed • Opportunistic • Infiltration
This creates a rhythm of repeated, moderate bursts of targeted action rather than continuous foraging or a single giant gamble, which makes the yellow-legged nomad bee a mid-frequency, timed-opportunistic system.
Yellow-spotted Millipede
Making Cyanide on Contact
Coiling into a spiral when disturbed • Releasing a precursor and an enzyme from separate chambers in paired glands along the body • Producing hydrogen cyanide and benzaldehyde at the moment of contact
Since encounters recur, it operates as a low-frequency system.
Yellow-spotted River Turtle
Falling-Water Sandbar Clutch
Grazing • Timed • River-bound
Because a slow low-cost life is organised around one externally timed event, it is a low-frequency system.
Yellow-throated Marten
Pairs Hunting Above Their Weight
Daylight • Paired • Level-switching
Continuous wide-ranging search in company makes this a mid-frequency system.
Yellow-vented Bulbul
Moving Seeds Around Cities
A generalist frugivore taking fruit from ornamental, cultivated and weedy plants across a city as readily as from forest trees • Seeds passing through the gut intact and being voided on walls, wires, roofs and vacant ground • Introduced and invasive plants therefore dispersed continuously through the urban landscape by a native bird
Because feeding is continuous, it operates as a mid-frequency system.
Yellowbelly Damselfish
A Male Fanning Eggs
Eggs laid in a sheet on a cleaned surface of coral, rock or gorgonian rather than released into the water • The male remaining with them and fanning continuously with the pectoral fins • Attacking anything that approaches and removing dead eggs until they hatch
Because the cycle repeats through the season, it operates as a mid-frequency system.
Yellowfin Surgeonfish
Crossing a Border in Numbers
Assembling into large mixed feeding schools over the reef • Entering damselfish territories as a mass rather than as individuals • Grazing the defended algae while the resident cannot expel more than one fish at a time
Because incursions recur often, it operates as a mid-frequency system.
Yellowjacket & Hornet
A Colony Abandoned Each Year
A single mated queen founding a nest alone in spring • Workers accumulating through summer until the colony numbers thousands • Every individual working toward a colony that will not survive the winter
Applying the structural test, these are two different states, making it a bimodal system.
Yellowtail Damselfish
One Dart From the Coral
Feeding on plankton in the water immediately above a coral head • Staying within a body length or two of the branches at all times • Darting into them at any movement and re-emerging seconds later
Since darts recur constantly, it operates as a high-frequency system.
Yeti Crab
Setae-Farmed Vent Bacteria
Waving • Grazing • Continuous
Because the waving and grazing run continuously, it is a mid-frequency system.
Zander
A Mirror Behind the Retina
Holding • Deep • Avoiding light
That makes it a bimodal system: an inactive bright phase and a productive low-light one.
Zebra Danio
Cardiac Muscle That Regenerates
A substantial portion of the heart ventricle removed and the wound sealed by a clot within hours • Surviving cardiac muscle cells losing their mature structure, dividing, and repopulating the missing tissue • The heart restored to essentially normal structure and function within two months, with little or no permanent scar
Because the process runs over weeks, it operates as a low-frequency system.
Zebra Dove
Barred Ground-Level Crypsis
Walking on open ground • Barring breaking the outline • Calling from cover
Because that routine is continuous through the day, it operates as a mid-frequency system.
Zebra Duiker
Reinforced Skull Fruit Cracking
Striped • Cracking • Forest floor
Because foraging proceeds as a steady daily cycle of testing and opening fruit, it is a mid-frequency system.
Zebra Finch
Contact-Call Pair Lock
Calling • Paired • Flocking
That makes the finch a mid-frequency system: rhythmic, social and built on continuous cheap signalling.
Zebra Longwing
Pollen in the Adult Diet
Slow • Long-lived • Circuiting
That makes it a low-frequency system: slow, durable and built on a food supply nothing else in its group uses.
Zebra Moray Eel
A Moray With Grinding Teeth
Working reef crevices by smell rather than sight • Taking crabs, urchins and molluscs instead of fish • Crushing them between flattened pebble-like teeth rather than holding them with fangs
Since foraging is continuous, it operates as a mid-frequency system.
Zebra Shark
Crevice-Threading Body Flex
Resting • Threading • Nocturnal
Because the whole design minimises expenditure and hunts by access rather than pursuit, it is a low-frequency system.
Zebra Swallowtail
Tied to One Tree
Fast • Low • Pawpaw-bound
That makes it a mid-frequency system: quick, restless searching bounded entirely by where one tree grows.
Zoanthid
One of the Deadliest Compounds
Colonies spreading as connected mats across reef rock and holding the space against other invertebrates • Tissues carrying palytoxin, among the most poisonous non-protein substances known • Neighbouring corals and settling larvae suppressed chemically rather than by any physical contest
Because expansion runs over months, it operates as a low-frequency system.
Zokor
Digging Is Feeding and Ploughing
Tunnelling toward roots • Eating below • Pushing spoil up
This is a low-frequency system.
Zone-tailed Hawk
Borrowed Vulture Silhouette
Soaring • Rocking • Unremarkable
Long cheap circling paying for a single unexpected drop makes this a bimodal system.
Zorilla
Stripes Legible in the Dark
Nocturnal • Marked • Left alone
That makes it a bimodal system: unbothered nocturnal foraging and a short escalating defence.