Gail’s talking about a small frog that lives in the Amazon rainforest. It’s so poisonous that local hunters tip their arrows with ooze they harvest from the frog’s skin.

The poison is extremely potent, causing paralysis in only seconds. Just two millionths of a gramme (2 microgrammes) are enough to kill a human.

But this is How, where we know no fear – so these little fellas are poison arrow frogs. Ooooh! Scary!

Or cute. They’re actually quite cute, huh?

When they’re stressed – say, when something tries to eat them – they secrete a poison from their backs.

In the wild, they eat poisonous beetles – then they collect and concentrate that poison, and exude it from glands in their backs.

Even a tiny amount of poison on your bare skin could kill you in seconds. So…

…doing this might seem crazy. Prodding a deadly-poisonous frog? No, Gail, what are you thinking?

It’s not what you might think. Gail’s frogs have been bred in captivity, and fed on these – baby crickets. As you might have guessed, the frogs themselves aren’t poisonous at all – it’s the poison they harvest from the beetles they eat that you have to be careful of.

So, how poisonous is a poison arrow frog? In the wild, it’s deadly – but if it’s only eaten crickets, it’s perfectly safe.