Sporeling

In Spore Creatures there are things called Sporelings. There look like small slugs that have a certain distinguishing part of their species, such as a large stalk with many eyes on it. They can be interacted with in many ways. They can be eaten, which causes it's species to dislike you, and other sporelings will run in terror. They can be cuddled, which will cause them to follow you. They can also be picked up and thrown into nests, which causes them to grow into normal creatures.