We wrestle with the dark side of human nature, and ask whether it's something we can ever really understand, or fully escape.

If an animal is worthless, can it be stolen?

This week we’re grabbing a branch, pulling ourselves up off the forest floor, and stumbling into a secret garden in the sky.

Shocking tales from the dairy farm.

A creature whose footprints produce and protect life.

This week, we flip the Disney story of life on its head thanks to a barrel of seawater, a 1970's-era computer and underwater geysers. It’s the chaos of life.

Can we win in the fight against antibiotic-resistant bacteria?

What happens when you combine an axe-wielding microbiologist and a disease-obsessed historian?

Can a species be so terrible we need to wipe it out?