Heavy Metal Exposure Can Cause Neurological Collapse in California Condors

Invisible metal can shut down a giant bird's nervous system.

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Chelation therapy is used to bind and remove lead from poisoned condors.

Lead poisoning interferes with the nervous system of California condors, causing weakness, tremors, and paralysis. Even moderate exposure can impair coordination and flight. Affected birds may appear lethargic or unable to perch properly. Without rapid intervention, organ failure can occur. Blood testing confirms elevated lead concentrations in many treated individuals. The neurological effects are severe relative to the tiny size of ingested fragments. Chemical toxicity overrides physical resilience.

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Neurological collapse in a nearly 20-pound bird underscores the potency of heavy metals. A fragment smaller than a fingernail can disrupt complex motor control. Loss of flight ability increases risk of starvation or collision. Field teams must respond quickly to prevent fatal outcomes. The mismatch between fragment size and physiological damage remains alarming.

The condor's vulnerability reveals how industrial materials infiltrate biological systems. Evolutionary adaptations for scavenging offer no defense against neurotoxins. Recovery strategies now integrate toxicology and emergency medicine. A predator built for endurance can be incapacitated by particles invisible to the eye. The threat operates at scales evolution never anticipated.

Source

U.S. Geological Survey

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