<Snipped quote by Memory>

Kangaroos don't really have a lot of babies at once like many animals. And those that are genetically related to them, Marsupials, have evolved to carry their young with them even after birth. Its a type of evolution change that allows for a higher chance of their babies to survive.
*starts drawing dogs of different breeds*
Most animals actually have multiple babies at once, they are very tiny though. Like these dogs. Some get pretty big, like to my belly, but most are smaller than waist height. These animals are typically companions or pets to us.

<Snipped quote by Extra>

All of the ones with a bunch of kids are pets?

<Snipped quote by Memory>

Not all of them, these ones yes.
*chuckles*
Though that doesn’t stop us from trying to make pets out of all of the animals.
*starts drawing a hippo*
Like this guy, seems cute. Its all big and round and lazy. But in reality they are one of the most dangerous animals to ever be near. And they are incredibly fast for how massive they are.
*starts to draw a rough human next to each for reference*

<Snipped quote by Extra>

Faster than the kangaroo? Are all big animals that dangerous there?

<Snipped quote by Memory>

In the country where the Kangaroo comes from? Almost comedically so.

<Snipped quote by Extra>

What makes them so dangerous?

<Snipped quote by Meta>

Highly predatory, territorial, or even just aggressive. And that’s the big animals. The smaller ones are highly venomous.

<Snipped quote by Extra>

Your world sounds like a very dangerous place. I don't think I'd want to visit...
*Pauses playing with the clay*
No offense.

<Snipped quote by Meta>

It’s just that country. The rest is much safer and less wildlife.