ELI5: Explain Like I'm 5

Pseudospeciation

Pseudospeciation is when two groups of animals or plants look really different and don't mate with each other anymore, even though they come from the same original species. Think of it like two cousins who look really different from each other - one might have curly hair and be tall, while the other has straight hair and is short. Even though they come from the same family, they might not want to marry each other because they look so different.

So, imagine if there were two groups of birds that started out as the same species, but over time, they lived in really different environments. One group of birds might have grown longer beaks to help them catch bugs in a certain kind of tree, while the other group of birds might have grown shorter beaks to eat different types of seeds on the ground. After a while, these two groups might look so different that they become separate species, because they don't mate with each other anymore. Even though they used to be the same species, they can't have babies together anymore because they are so different.

Pseudospeciation can happen because animals or plants living in different environments might need to adapt in different ways to survive. Over time, these differences can accumulate until two groups become so different that they can't mate with each other anymore. But, even though they might seem like different species now, they originally came from the same family!