A host is on a mission to catch and interact with various aquatic predators, starting with barracudas. He explains that barracudas are fierce and opportunistic, with sharp teeth that can inflict serious damage. He also mentions that piranhas have a bad reputation for being deadly predators, but notes that myths about them are often exaggerated.
The host then moves on to discuss sharks, specifically how they can become aggressive when there is food in the water. He also explains that feeding wild animals can modify their behavior and make them dependent on humans.
Next, the host goes to Thailand to research the largest freshwater fish in the world, the Mekong giant catfish. He explains that this fish can grow up to 500 kg and has very sharp spines that can be dangerous.
The host also catches a ray and a region of doubt, which he considers to be one of the most dangerous animals on the planet. He has to be careful when handling it to avoid getting hurt by its venomous stinger.
Finally, the host goes to the Amazon to catch an electric eel, which is not actually an eel but a member of the gymnotiform family. He explains that the electric eel has electric cells that make up 90% of its mass, which can deliver a powerful electric shock that can cause irreparable damage or even death. The host is careful when handling the eel and measures its electric discharge, which reaches up to 450 volts.
Here are the key facts extracted from the text:
1. Barracudas can grow up to two meters in length and weigh nearly 40 kg.
2. Barracudas have a second set of sharp teeth that can cut into pieces.
3. Barracudas can inflict serious damage with their attacks, even if they are not fatal.
4. Piranhas are known to be eaters of men and can mutilate or kill human beings.
5. Piranhas have powerful jaws that can exert a force three times more powerful than that of an alligator.
6. Piranhas are capable of jumping out of the water and can be super dangerous.
7. Sharks can become aggressive when there is food in the water.
8. Electric eels are not actually eels, but are part of the gymnotus family, closer to catfish.
9. Electric eels have 90% of their mass made up of electric cells, which can deliver a violent shock.
10. The bigger the electric eel, the more powerful the electric shock it can deliver.
11. Electric eels can breathe air, but their vital organs are concentrated in a small region of about 15 centimeters under their head.
12. Electric eels can contract and amplify their discharges, making them more powerful.
13. Electric eels can deliver discharges of up to 500 volts, with approximately 100 volts every 30 cm.
14. Freshwater fish can grow to be over 500 kg and are considered one of the most massive freshwater fish in the world.
15. Bull sharks have broad heads and are known to be aggressive predators.