What Is a Red-Colored Flea?
![](https://www.fleabitesonhuman.com/wp-content/uploads/2014/09/Catflea2.jpg)
While the exact number remains unknown, scientists estimate there are around 2,000 different species of fleas inhabiting Earth. Some of these species are invasive and prefer to feed on the blood of dogs, cats and humans, whereas others feed strictly…