* Scientific name: _Paraponera clavata_
* Location: Amazon rainforest
* Danger level: Extremely dangerous
* Venom: The bullet ant is known for having one of the most painful stings in the world.
* Symptoms of envenomation: excruciating pain that can last up to 24 hours, swelling, and intense burning sensation
2. Brazilian wandering spider
* Scientific name: _Phoneutria_ spp.
* Location: Central and Eastern South America
* Danger level: Extremely dangerous
* Venom: The Brazilian wandering spider is considered one of the most venomous spiders in the world,.
* Symptoms of envenomation: Severe muscle pain, cramps, nausea, vomiting, increased blood pressure, heart palpitations, difficulty breathing
3. Poison dart frog
* Scientific name: _Phyllobates terribilis_
* Location: Pacific coast of Colombia and Ecuador
* Danger level: Extremely dangerous
* Toxin: The poison dart frog secretes a powerful toxin called batrachotoxin, through its skin
* Symptoms of envenomation: Muscle paralysis, convulsions, cardiac arrhythmias and respiratory failure if it comes into contact with the human skin or mucous membranes,
4. Black Caiman
* Scientific name: _Melanosuchus niger_
* Location: Central and eastern South America, including the Amazon, Colombia, Ecuador, Guyana
* Danger level: Dangerous when provoked
5. Green anaconda
* Scientific name: _Eunectes murinus_
* Location: Northern South America, primarily in the Amazon rainforest .
* Danger level: Dangerous when cornered,
* Method of attack: Constriction, biting