Frequency signatures: Large-billed Crow to Lesser Banded Hornet
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 1,225–1,248.
Large-billed Crow
Heavy Bill Working Every Seam
Scavenging • Edge-working • Versatile
That makes it a bimodal system: versatile daytime foraging and nightly communal roosting.
Largehead Hairtail
Pelagic Ribbon Undulation
Rhythmic • Ribbon • Glide
Because the whole system is built around ongoing, rhythmic movement that the water “reads” as part of its own flow rather than as a discrete object, this is a mid-frequency swimmer: coordinated, repeatable, and tuned to continuous operation rather than extremes of stillness or explosive bursts.
Largetooth Sawfish
Freshwater Nursery Residency
Upriver • Juvenile • Years
Because everything in those years runs very slowly, it is a low-frequency system.
Lasioglossum albescens
Communal Entrance, Private Cells
Foraging • Communal • Provisioning
Because one steady provisioning rhythm of out-and-back trips, repeated cell after cell through a common door, drives the whole nest, it runs as a mid-frequency system.
Laughing Kookaburra
Group-Timed Dawn Call
Family • Synchronised • Bordered
That makes the kookaburra a mid-frequency system: rhythmic and coordinated, where a group signal does work no individual could do alone.
Laysan Albatross
Locked Wings Harvesting the Wind
Soaring • Wind-powered • Far-ranging
That makes it a bimodal system: wind-powered foraging and a slow, bonded colony life.
Leaf Beetle
Plant-Specific Foraging Circuit
Rhythmic • Plant-tuned • Surface-led
This creates a mid-frequency system built on rhythmic, plant-tuned foraging and constant attention to fine-grained details on the leaf surface.
Leaf Scorpionfish
Leaf-Mimic Venom Ambusher
Drifting • Hidden • Patient
Because their whole body and behavior are built around long stretches of low, camouflaged waiting punctuated by brief, explosive strikes that immediately drop back to stillness, the leaf scorpionfish is a bimodal low–high frequency system.
Leaf Sheep Sea Slug
Drinking Algae Cell by Cell
Piercing • Sucking • Sitting
The whole system is a single slow mode: sitting on the food, draining it, and borrowing its colour.
Leafcutter Ant
Fungus-Fed Trail Network
Rhythmic • Networked • Layered
That makes the leafcutter ant a mid-frequency system: continuous, coordinated activity that turns repetition into durable structure.
Leafy Seadragon
Transparent-Fin Weed Drift
Drifting • Leafed • Near-invisible
Because the whole system substitutes a structural disguise for speed or defence, it is a low-frequency system.
Least Bittern
Swaying in Time With the Reeds
Straddling stems • Bill up • Rocking with the wind
Almost entirely stationary except for that sway, this is a low-frequency system.
Least Weasel
Narrow Body Built to Follow Voles Underground
Tunnelling • Hunting • Relentless
The system is bimodal: HIGH hunting bursts separated by LOW recovery.
Leatherback Sea Turtle
Bulk-Held Heat Reconfiguration
Cold water • Heat held • Slow
This is not a seasonal coat or a growth stage but an active reconfiguration of the same system to the context it is in, which is why it is an adaptive system.
Leopard Gecko
Eyelids, No Toe Pads, Fat in the Tail
Crepuscular • Grounded • Stored
That makes it a low-frequency system: economical, ground-bound and built around storage.
Leopard Lacewing
Carrying the Plant's Poison Forward
Larvae feeding on passion vines whose tissues carry cyanogenic compounds • Those compounds sequestered rather than excreted and retained through pupation into the adult • Bright orange and black wings advertising the retained toxicity to anything that has tasted one before
Because the accumulation runs across the life cycle, it operates as a low-frequency system.
Leopard Seal
Streamlined Ice-Edge Pursuer
Patrolling • Scanning • Opportunistic
This combination of sustained patrolling around productive edges and brief, high-intensity attacks makes the leopard seal a bimodal system built on a mid-frequency search rhythm punctuated by high-frequency strikes.
Leopard Shark
Biting Off What Grows Back
Hovering over soft sediment and applying suction to extract buried prey • Taking the exposed siphons of clams and the tails of innkeeper worms rather than the whole animal • Returning to the same flats as those parts regenerate
Because feeding is repeated, it operates as a mid-frequency system.
Leopard Slug
Mating in the Air
Circling and following a partner's slime trail for hours • Lowering together on a single mucus thread • Exchanging sperm through entwined everted organs
Since the cycle runs across a season, it operates as a low-frequency system.
Leopard Toby
Toxic Skin, Water-Pumped Swelling
Chemical • Standing • Unhurried
With a chemical guard that costs nothing to keep and an inflation response that is costly but rarely used, the fish operates as a bimodal system of low-frequency standing defence and high-frequency swelling.
Leopard Tortoise
Armoured Hindgut on Slow Legs
Grazing • Fermenting • Unhurried
Armour, fermentation and unhurried travel make this a single low-frequency system.
Leopoldi Stingray
Spiracle-Breathing Sand Burial
Settling under sand • Breathing through the top • Trapping under the disc
Because everything is slow, benthic and continuous, it operates as a low-frequency system.
Lesser Adjutant Stork
Limited by Trees, Not by Water
Striding shallows • Taking what appears • Nesting very high
Slow and deliberate, this is a low-frequency system.
Lesser Banded Hornet
A Chemical Label Applied
A guard detecting a threat near the nest and releasing alarm pheromone from the sting apparatus • That chemical settling on the intruder itself rather than dispersing generally • Every hornet arriving afterwards directing its attack at whatever carries the mark rather than searching for a threat
Because the response unfolds in seconds, it operates as a high-frequency system.