Animals of the Caatinga: semi-arid wildlife and the agricultural robot's operational safety

Wildlife and operational safety TRL 5 prototype · under validation

The Caatinga is home to a diverse wildlife adapted to Brazil's semi-arid region — from armadillos and deer to reptiles and birds, plus the cattle that share the same pasture on most properties. For an agricultural robot, this isn't scenery: it's one of the real factors that shape how navigation and implements need to behave in open field.

Biome species

Animals of the Caatinga

A general, non-exhaustive picture of common groups in Brazil's semi-arid region. Presence and behavior vary by region, season and local hunting or deforestation pressure.

Six-banded armadillo

A burrowing mammal, mostly active at dusk and at night; its burrows can locally soften soil firmness.

Gray brocket deer

A small, discreet deer that moves through dense vegetation and can cross a path suddenly.

Rock cavy

A small rodent common on Caatinga ground, usually in groups, with fast and unpredictable movement.

Red-legged seriema

A large ground bird that walks more than it flies and tends to cross open areas between vegetation.

Reptiles (rattlesnakes, tegu lizards)

Venomous snakes and lizards are part of the biome; they call for safe distance and extra attention in dense vegetation and rocky ground.

Cattle under extensive grazing

Cattle and goats share the land with crops and pastures on most semi-arid properties — the most frequent dynamic obstacle in practice, not the most exotic one.

General sources: IBGE — Biomes and IBGE Educa — Brazilian biomes.

Technical criterion

Wildlife is not a static obstacle

A rock or a post stays put; an animal doesn't. The difference between detecting a fixed object and reacting to a living being in motion is central to any agricultural navigation system — and this exact kind of dynamic obstacle is what most challenges computer vision and the robot's ability to stop in time.

That's why the presence of wildlife isn't a scenic detail: it's an operational parameter, with direct weight on safe speed, braking distance and stop criteria.

From animal to technical response

What to assess before operating near wildlife

The matrix organizes questions for technical assessment. It does not represent guaranteed performance or obstacle detection validated for every scenario.

Observed situationPossible impactParameter to assessTechnical response
Cattle grazing in the work areaPath crossing, unplanned stopHerd density, minimum safe distanceDynamic obstacle detection under validation
Wild animal crossing the pathSudden swerve or collisionOperating speed, braking distanceSupervised operation; manual stop available
Burrow or nest in the areaGround subsidence, implement or nest damagePrior area survey, terrain irregularity mappingField survey before any trial
Reptiles in dense vegetationRisk to manual maintenance and inspectionVegetation height, PPE use, approach protocolOperator safety procedure
Low light (dusk/night)Reduced visual detection capabilityLighting, operating hours, camera limitsCurrent daytime operation; night sensing is a future goal
Caatinga Rover

Three stages for handling living obstacles

Human supervision remains central at any of these stages. Wildlife in motion is, by nature, more demanding than a fixed obstacle mapped in advance.

Available in the prototype

T1 — Manual control

The operator spots the animal and reacts directly, adjusting path and speed.

Under validation

T2 — Assisted route with supervised stop

The system repeats a taught route, but stopping for an obstacle still depends on operator supervision.

Development goal

T3 — Autonomous dynamic obstacle detection

Recognizing and reacting to a moving animal without relying on the operator requires sensing and safety validation still under development.

Learn about Caatinga Rover's features · See the validation method

Task and tool

Wildlife also affects the implement

Safe mobility and task execution need to consider who else occupies that space.

Prototype under validation

1.25 m mower

Denser vegetation tends to shelter burrows and nests; a prior area survey and blade height adjustment are part of the protocol before any mowing trial.

Learn about the between-row mower →
Prototype under validation

Trellis and arbor sprayer

Drift and application timing are also assessed in relation to pollinating wildlife and animals present in the crop area.

Learn about the sprayer →
Under development

Sensing and safety stop

Dynamic obstacle detection, including wildlife, still depends on sensors and specific validation before any use without direct supervision.

See modules under development →
Brand origin

A territory with people, wildlife and machines

The name Caatinga Robotics comes from the territory where the project was born — and that territory isn't empty. It's home to farmers, to cattle under extensive grazing, and to native wildlife adapted to drought. A robot designed for this environment needs to be built to coexist with all of them, not just to move across a landscape.

This is also why field validation, not just bench testing, is indispensable: animal behavior is one of the hardest variables to simulate outside the real property.

Environment-driven demonstration

Assess my area's conditions

Tell us about your crop, terrain, local wildlife and repetitive task for an initial demonstration or test-area assessment.

Assess my area's conditions