Difference between male and female guinea pig

Momo (male) is active. Almost every morning will "exercise" in his cage by running extremely fast! His cage get dirty faster than Mimi's.

Mimi (female) is not so active compare to Momo, seldom see her running fast in the cage. She always lie down at a corner relaxing. Mimi knows how to poo poo at a corner, very very hygienic guinea pig.

After putting them together, the cage become big. I put one side their food, center is their "house" and another end is empty. Momo learns to poo poo at the corner from Mimi. At least now the empty side will flood with poo poo first before flooding the center and the food part of the cage. :D


The most important thing is, male guinea pig has "2 balls" which can see in the picture.... Oppsss....