but this time you start the test with an even mix of all four guppy types (brightest, bright, drab, and drabbest). You've also placed a whole host of guppy predators in the test pool: 30 rivulus ...

Next up, we’ll meet five different types of livebearers and learn how to care for them in the home aquarium. Let’s get started! The guppy (Poecilia reticulata) is the most popular livebearer ...

After maintaining your simulation pool for only one year, you find a significant decline in the number of moderately colored guppies. The brightest males and drabbest males are still faring pretty ...