Tiny but mighty creatures
Imagine a monster with many tentacles, bulging eyes, antennae, a pointed mouth and thousands of tiny teeth. Imagine that it reproduces very fast, so it always lives with thousands of other similar monsters. Well, you don’t need to imagine it because this exists. Although, fortunately it’s not as big as you’re thinking.
These are sea parasites viewed through a microscope. These creepy crawlies vary widely in size, but may be impossible to see with the human eye. Although, that doesn’t mean they are not dangerous. Like all parasites, they crawl into the bodies of fish and feed on them, and can even kill them.