How do biotoxins help animals capture food?

Biotoxins, specifically those classified as zootoxins, serve as critical tools for various animals to capture and immobilize food. While the term "poisonous" is often used colloquially, biologists distinguish these animals as venomous because they actively inject toxins into their prey.123

These toxins facilitate food procurement through several mechanisms:

• Rapid Immobilization: Many predators, such as snakes, utilize specialized salivary glands to produce venom that is injected via fangs or grooved teeth. This venom can disrupt the prey's nervous system, circulatory system, or heart, allowing the predator to secure prey that might otherwise escape.45
• Paralysis for Storage: Some species, including certain wasps, use neurotoxins to paralyze their prey, enabling them to store the food alive for later consumption.5
• Specialized Delivery Systems: Animals like cnidarians (such as jellyfish) employ nematocysts—capsules containing barbed, venomous threads—to capture and subdue prey upon contact.3

These evolutionary adaptations allow predators to efficiently manage the challenges of hunting, ensuring they can successfully capture and consume their prey.14