This is the Guardian.

Today, Columbia struggles with a big, very big question.

What do you do with Pablo Escobar's Out of Control Hippos?

So, Gina, tell me, how exactly do you go about castrating a hippo?

So, castrated a hippo is the most difficult thing you can ever do.

This is Dr. Gina Serna.

She's a wildlife vet from Medi-Edit in Columbia.

And you could say hers is near average day job.

First of all, we have to make a plan to capture the hippo.

The biggest one is like three, three and a half tons.

Wow.

There's so big and so compact with big teeth, so it's really scary

because they are absolutely dangerous.

These animals are enormous, like a big fridge on four squat legs,

but they can move surprisingly fast.

Their top speed is 30 miles an hour.

That's faster than you say in Bolt.

Gina sterilizes them in the wild.

It takes a team of at least 10 people.

First, to find them.

And then we have to shoot them with these doors

that have the anesthesia doses.

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