Blue-Ringed Octopus
Source: https://allthatsinteresting.com
Another colorful, small, but deadly creature. Nice to look at, but don’t touch. This octopus is smaller than an average candy bar, yet has enough toxin to kill 26 human adults in just a few minutes. The poison is over a thousand times stronger than cyanide. There have been recorded instances of human deaths. Well, deadly things come in small packages, so watch out when swimming or diving. Always remember that colorful creatures normally are venomous. They may not have the intention of killing, but the effect does not change.