Curiosity Stream
Curiosity Original

Evolution of Flavor

Bright Now
93% loved this4KCC
Plans start at $4.17/month

Inside your tongue, a hidden sensory system rewrites flavor.

This episode reveals how taste evolved to help us survive, from detecting nutrients and poisons to shaping the flavors we crave. You will explore surprising discoveries, including receptors that may let the tongue sense smell and taste cells working far beyond the mouth. Sign up to see how an everyday sense is changing our understanding of the body.

Love Evolution of Flavor? It’s just the start.

Join now to unlock the whole library — thousands of award-winning documentaries beyond Evolution of Flavor, from the deep ocean to deep space.

  • New shows weekly
  • Exclusive originals
  • Watch anywhere
  • No commitment

Pick the plan that’s right for you.

Flexible plans, no contracts.

Thousands of documentaries across nature, history, space, and science.

  • Watch in 4K on all your devices
  • Download and watch offline
  • Stream ad-free — cancel anytime
Cancel anytime, on either plan.

Thousands of documentaries across nature, history, space, and science.

  • Up to 4K
  • Offline downloads
  • Ad-free

Frequently asked questions

Yes. Every plan unlocks the full library — including all Curiosity Originals like Evolution of Flavor — in up to 4K, ad-free, on all your devices.

Evolution of Flavor is a Curiosity Original, exclusive to Curiosity Stream. Plans start at $4.17/month.

Watch on the web, iOS and Android, Roku, Apple TV, Amazon Fire TV, Chromecast, Android TV, and most smart TVs. Start on one device and pick up right where you left off on another.

Curiosity Stream is our streaming service — thousands of documentaries and originals. The Smart Bundle is Curiosity Stream plus four other independent streaming services (Tastemade, Kidstream, Curiosity University, and SOMM TV) on a single subscription.

Got your answer? Pick a plan and start streaming.