Hummingbirds: A World Beyond Human Senses

Explore a hummingbird's six senses in interactive 3D: ultraviolet colour, high-pitched song, a rebuilt sweet-taste gene, scent, touch and optic flow.

Start the interactive 3D lesson

What this lesson is about

This lesson follows a hummingbird through six senses, using a rigged 3D model you can orbit, zoom and switch to X-ray view as you read. You'll learn why birds can see colours humans can't, how one Andean species sings above usual bird hearing, and how a single gene family was rebuilt to taste nectar. You'll also see how smell steers foraging and why hovering depends on optic-flow neurons. Every chapter says whether its claim was shown in hummingbirds or comes from general bird anatomy, and it ends with what you can do to protect them.

You will learn to

  1. Explain what a nonspectral colour is and why birds can see more of them than humans.
  2. Tell apart a species-specific finding from general bird anatomy.
  3. Describe how the T1R1–T1R3 receptor was repurposed from umami to sweet in hummingbirds (genotype → phenotype).
  4. Explain optic flow and why it matters for hovering flight.
  5. Name practical actions that protect hummingbirds and the plants they pollinate.

The papers behind it