Consider the following : Butterflies Fish Frogs How many of the a

Consider the following :

Butterflies
Fish
Frogs

How many of the above have poisonous species among them ?

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Only one

Only two

All three

None

Answer is Right!

Answer is Wrong!

This question was previously asked in

UPSC IAS – 2024

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All three groups listed – Butterflies, Fish, and Frogs – contain species that are poisonous.

– Butterflies: Some butterfly species, like the Monarch butterfly, are poisonous due to toxins accumulated from their host plants (e.g., milkweed). These toxins make them unpalatable to predators.
– Fish: Many fish species are poisonous if eaten (e.g., pufferfish containing tetrodotoxin). Additionally, many fish are venomous, possessing spines or barbs that deliver toxins (e.g., stonefish, lionfish, stingrays).
– Frogs: Numerous frog species, particularly brightly colored ones in tropical regions (like poison dart frogs), secrete potent toxins through their skin as a defense mechanism. These toxins can be extremely dangerous or even lethal to predators.

The terms “poisonous” (toxic when eaten or touched) and “venomous” (delivers toxin via bite, sting, etc.) are distinct, but both fall under the umbrella of containing toxins for defense or offense. The question asks about “poisonous species,” which generally encompasses both forms of toxicity in common usage, and in this context, species with either type of toxicity are found in all three groups.

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