You can't just suppress 65 million years of gut instinct.

My instinct? My instinct is to train him. Hard.

My gut tightens up.

Call it my gut.

Took it through my gut.

Instinct.

My gut says he found another ride.

It's instinct.

Blind instinct.

My infallible lifelong instinct for sizing people up.

Gut him!

My gut says we're getting off this island.

But I wanted people to actually feel my work from their gut, because I was painting it from my gut.

It's natural instinct.

That is instinct.

What did I do? Did I follow my gut?

She's acting on instinct.

Animals act on instinct.

I have an instinct.

Stick with your instinct.

Instinct I just know.

Tourette's Gut on youtube?

I'll gut your ass.

This your gut again?

You see this gut?

I'm going to let my first instinct take over and ask.

Birds have a homing instinct.

Go on instinct, I guess.

I trust a mother's instinct.

Your instinct was right, John.

And it was gut wrenching.

So that's your gut check.

What does your gut say?

Let's gut the friggin' nerd.

Yeah. I just kind of went with my gut on it, Norm.

In fact, this gut instinct is reflected in one of the most fundamental laws of physics, the second law of thermodynamics, or the law of entropy.

Laughter is a human instinct, and when it comes to instinct, cultural barriers don't exist.

Instinct is often a poor guide.

Birds learn to fly by instinct.

The instinct for survival is innate.

And your instinct is to say,

Your religious faith and paternal instinct

I think that's a good instinct.

But it shrunk to 60 percent of primate gut of my body mass.

So why this rotten feeling in my gut that something is awfully wrong?