--- title: "14 Deadliest Animals in the Amazon" url: https://www.kickassfacts.com/deadliest-animals-in-the-amazon/ date: 2024-09-07 modified: 2024-09-07 lang: en author: "Editor" description: "The Amazon is the largest tropical rainforest on the planet. Scientists claim it's home to at least 10% of Earth's species. That doesn't come as a surprise because it spans..." categories: - "Animals & Plants" - "Science" image: https://www.kickassfacts.com/wp-content/uploads/2024/09/amazon-feature.jpg word_count: 968 --- # 14 Deadliest Animals in the Amazon The Amazon is [the largest tropical rainforest on the planet](https://www.kickassfacts.com/25-kickass-amazing-facts-about-amazon-rainforest/). Scientists claim it's home to at least 10% of Earth's species. That doesn't come as a surprise because it spans millions of square miles, passing through 8 countries. While most of the live matter in the region is harmless, there are a few deadly creatures that lurk within the Amazon River and forest. Some of these animals have been portrayed in films such as Jungle Cruise and Burden of Dreams. If you haven't watched any of those, worry not; check out the following 14 terrifying animals that can be found in the Amazon. ## 1. Green Anaconda ![](https://www.kickassfacts.com/wp-content/uploads/2024/09/Green-anaconda-amazon-768x688.jpg) The animal that people fear the most when visiting the Amazon is the Green Anaconda. This creature was popularized by the film Anaconda, released in 1997. Even though this movie had its fair share of exaggerations, these animals are extremely dangerous. A typical green anaconda [can weigh up to 500 pounds and grow to 29 feet](https://www.nationalgeographic.com/animals/reptiles/facts/green-anaconda). They use their huge bodies to attack and dismember their prey. Green anacondas hide in the Amazon River and sometimes bask in the forest. They feed on anything they come across, including humans. ## 2. Piranha ![](https://www.kickassfacts.com/wp-content/uploads/2024/09/piranha-teeth.jpg) Piranhas have also been popularized by movies, and they are as deadly as advertised. They are among the few fish species that feed on flesh. They have razor-sharp teeth that can dig through skin and even plants. A single piranha, though lethal, can't put down a large animal such as a wild pig. However, when such an animal gets into a piranha-filled water, they attack it as a group. Though lethal, some of the indigenous tribes in the Amazon feed on piranhas. ## 3. Pacus ![](https://www.kickassfacts.com/wp-content/uploads/2024/09/pacu.jpg) [The Pacus is a cousin of the Piranha](https://animals.mom.com/difference-between-piranha-pacu-8286.html). However, it is bigger and has teeth resembling those of a human being. Pacus fish are omnivores and can deliver a powerful bite to animals and human beings crossing its path. ## 4. Electric Eel ![](https://www.kickassfacts.com/wp-content/uploads/2024/09/electric-eel.jpg) The electric eel can generate up to [600 volts of electricity](https://aqua.org/explore/animals/electric-eel#:~:text=So%2C%20it), which is enough to kill a human being or any other animal that it makes contact with. Fortunately, electric eels rarely produce such levels of electricity. They only generate a few volts to scare away prey. This is more of a defense mechanism than a means of hunting. ## 5. Bull Shark The [Bull Shark falls under the world's top three most dangerous shark species,](https://www.nwf.org/Educational-Resources/Wildlife-Guide/Fish/Bull-Shark#:~:text=They%20prefer%20shallow%20coastal%20water,shark%20attacks%20are%20extremely%20rare.) alongside tiger sharks and great whites. Bull sharks can reach a weight of 600 pounds and can grow to 11 feet. Although they are rarely spotted along the Amazon River, they are there! They are territorial and won't hesitate to attack. Bull sharks can live in both fresh and salty water. ## 6. Poison Dart Frogs ![](https://www.kickassfacts.com/wp-content/uploads/2024/09/poison-dart-frog.jpg) [Poisoned dart frogs](https://kids.nationalgeographic.com/animals/amphibians/facts/poison-dart-frog#:~:text=With%20a%20range%20of%20bright,%2C%20%22I) are why humans should avoid brightly colored animals. This frog species looks quite attractive, and they have a wide range of colors, such as blue, green, orange, or yellow. The poison from this frog can kill ten humans as it induces heart failure in just a few minutes. ## 7. Brazilian Wandering Spider ![](https://www.kickassfacts.com/wp-content/uploads/2024/09/brazillian-wandering-spider.jpg) This spider species is not only unique for its neurotoxic venom that paralyzes its prey, but it does not build webs. The Brazilian Wandering Spider crawls on the forest floor at night, searching for food, making it dangerous for anyone visiting the Amazon. A bite from this spider increases blood pressure and heart rate rapidly. If not treated, a single bite from this spider can lead to death. ## 8. Black Caiman Alligator ![](https://www.kickassfacts.com/wp-content/uploads/2024/09/black-caiman-alligator-768x308.jpg) This is the largest member of the alligator family and can grow up to 12.5 feet long. The [Black Caiman](https://www.iflscience.com/black-caiman-the-amazons-apex-predator-that-hunts-everything-even-humans-74252) also has a powerful jaw, making it extremely fierce to animals and humans. As dangerous as the alligator is, it's constantly being hunted for its hide. ## 9. Amazonian Bushmaster ![](https://www.kickassfacts.com/wp-content/uploads/2024/09/amazonian-bushmaster.jpg) The Amazonian Bushmaster [has a distinct brown skin with black triangles](https://www.reptilesofecuador.com/lachesis_muta.html). Although attacks from this reptile are rare, they can produce highly toxic venom when provoked. The venom from an Amazonian Bushmaster can trigger diarrhea, difficulty breathing, vomiting, and death. As aforementioned, this snake rarely interacts with humans. ## 10. Bullet Ant ![](https://www.kickassfacts.com/wp-content/uploads/2024/09/bullet-ant.jpg) The bite of a Bullet Ant is so painful that it has been equated to that of being shot by an actual bullet. Even though it's not fatal, a bite from a Bullet Ant paralyzes the skin and causes pain for at least one day. This bite has a score of 4.0 on the Schmidt's sting pain index. ## 11. Giant Otters ![](https://www.kickassfacts.com/wp-content/uploads/2024/09/giant-otters.jpg) On the surface, Giant Otters may seem harmless. However, these creatures are known for killing anacondas and Caimans in the Amazon. They are very smart killers and sometimes work as a group. They eat most of their prey alive, which makes them dangerous even to humans. ## 12. Tyrant King Leeches Though small, the Tyrant King Leech is a menacing creature. Armed with huge teeth, [the Tyrant King Leech makes a hole in the openings of animals](https://www.nationalgeographic.com/animals/article/100415-new-species-t-rex-leech-orifices), such as the genitalia or eyes. It then digs deeper into the flesh, sucking blood along the way. Tyrant King Leeches can stay in an animal's body for weeks, causing significant damage. ## 13. Candiru ![](https://www.kickassfacts.com/wp-content/uploads/2024/09/candiru.jpg) Candiru is a parasitic fish that uses its tiny body to enter a large fish through its gills. After it digs in, it starts feeding on the host. While Candirus may seem threatening only to fish, there was one incident in which this parasite entered a swimmer's body in the Amazon River by penetrating through his orifices. ## 14. Common Lancehead ![](https://www.kickassfacts.com/wp-content/uploads/2024/09/lancehead.jpg) The Common Lancehead is a very daring snake. It prefers staying near water sources and can sometimes enter human habitations. They mostly move at night and feed on lizards, rodents, and fish. The bite from a Common Lancehead is not lethal, but it can be excruciatingly painful. Its bite can also cause bleeding and loss of consciousness.