Here's how:
* Both are mammals: This means they belong to the class Mammalia, a group of warm-blooded animals that give birth to live young and nurse them with milk.
* Both are placental mammals: This means their young develop inside the mother's body, receiving nourishment through a placenta.
* Both are eutherians: This is a sub-group of placental mammals that includes most modern mammals, including humans.
* Both are part of the same evolutionary tree: Humans and bandicoots share a common ancestor that lived millions of years ago. However, the two lineages diverged a long time ago, meaning they've evolved separately for a very long time.
While we are related, bandicoots are much more closely related to other marsupials, like kangaroos and koalas. Humans are more closely related to primates like monkeys and apes.
Here's a simplified way to visualize their evolutionary relationship:
```
Mammalia
|
|
---------------------------------
| |
| |
---------------------- Eutheria
| | |
| | |
| | |
| | |
| | |
Metatheria Peramelemorphia Primates
| | | |
| | | |
Kangaroos Bandicoots Other mammals Humans
```
This demonstrates that while we share a common ancestor, humans are much more closely related to other primates than bandicoots are to humans.