Summary:

- The article discusses the dangers of certain caterpillar species that can be deadly to humans. It focuses on the Lonomia obliqua, a species found in South America, which has venom that can cause internal bleeding and even death.

- The article explains the mechanism behind the Lonomia obliqua's venom, which contains a cocktail of proteins that interfere with the body's blood clotting process. This can lead to uncontrolled bleeding and potentially fatal consequences.

- The article also highlights the importance of awareness and caution when encountering these caterpillars, as well as the need for further research to understand their venom and develop effective treatments for their bites.