* Most venomous? This refers to animals that inject toxins through bites or stings. In this case, the Box Jellyfish is often considered the most venomous. Its venom is incredibly potent and can cause severe pain, organ damage, and death within minutes.
* Most toxic? This refers to animals whose flesh, organs, or secretions contain toxins. In this case, the Golden Poison Frog is often cited. Just a tiny amount of its skin secretions can be fatal to humans.
* Most dangerous? This is a more complex question, as it considers factors like the amount of venom/toxin produced, the frequency of encounters with humans, and the effectiveness of available antidotes. While the Box Jellyfish has the most potent venom, other animals like the King Cobra and Black Mamba are considered highly dangerous due to their larger venom yields and aggressive nature.
Ultimately, the "poisonest" animal depends on how you define the term. Each animal has its own unique set of toxins and risks associated with them. It's important to be aware of the dangers posed by venomous and poisonous animals and to take appropriate precautions when in their habitats.