Why is it important to avoid handling the blue-necked keelback, especially when feeding?

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The Blue-Necked Keelback Snake Poses a Dual Danger Due to Its Venomous and Poisonous Nature

The blue-necked keelback snake (Rhabdophis rhodomelas) presents a significant hazard, necessitating caution from the public, particularly when the reptile is engaged in feeding. This species is unique in possessing both venomous and poisonous properties, a characteristic that amplifies the risk associated with any interaction. Its typical habitat near forest streams, where it preys on frogs, means encounters can occur in natural environments frequented by people.
Dual Nature of the Snake

The blue-necked keelback is classified as both venomous and poisonous. As a venomous species, it injects toxins through a bite, which can cause severe harm. Simultaneously, it is also poisonous, meaning its body tissues contain toxins that can be harmful if ingested or even touched. This dual defence mechanism makes it a particularly dangerous creature, as threats can arise from both its bite and contact with its skin.
Feeding Behaviour and Associated Risks

This snake primarily feeds on frogs and is typically found in close proximity to forest streams, a common feature in its natural habitat within mature secondary, primary, and swamp forests. Dr Alex Figueroa, from the International Commission on Zoological Nomenclature Secretariat at the Lee Kong Chian Natural History Museum, NUS, specifically advised the public against handling the snake, especially during its feeding process. When a blue-necked keelback is feeding, it is likely to be more focused and potentially more defensive, increasing the likelihood of a negative encounter if disturbed.
Habitat and Sighting Context

The species has been observed in various forest types, including those found in Singapore's Central Nature Reserves and surrounding nature parks. A recent sighting at MacRitchie Reservoir on August 1, documented with photographs showing what appeared to be prey in its mouth, highlighted the snake's presence and feeding habits. Such sightings, while fascinating to nature enthusiasts, underscore the importance of respecting wildlife and maintaining a safe distance to avoid potential harm.

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Why is it important to avoid handling the blue-necked keelback, especially when feeding?

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