I am colorblind, and sometimes I am so jealous of the spectrum of beauty that I miss out on. I’m almost tearing up watching this video and seeing these comments describing the awe inspiring beauty of this phenomenon. I appreciate this channel and how articulately they can communicate these concepts in physics and biology. You guys provide a great service, and it is appreciated.

As a scientist, I study exactly this coloration in animals, and I must admit, I still get excited watching this video! Amazing, thank you for bringing awareness to this topic! I have dedicated a good portion of my life to it!

I would love a clothing brand that uses technology based off of animals to make iridescent clothing

My dad had an opal ring that I used to stare at every time we talked. It looked like a galaxy on his finger set in this weirdly gaudy gold ring. It disappeared during a move shortly after he passed. One of my biggest regrets is not making sure it was in a safe place.

As a first-grader in the 70s I painted a rock to look like a beetle with rainbow wings. For decades I've wondered why I did that. Now I know I was seeing iridescence. Everything looks more amazing to first-graders and scientists.

As an artist, I love iridescent paints! When for the very first time I could paint a dragonfly as it really is, I think I died and went to heaven. I could spend days in the backrooms of that museum, just drinking the colors in.

Videos like this are what the internet was supposed to be. I watch this with my baby girl and it's like we are hypnotized. With all the spam and creeps and stuff that are all over the web this video and the millions like it make me so glad there is an internet and a YouTube in the world. Thank You "BE SMART" for contributing to Society in your way and please don't stop.

Greetings from Germany. Just discovered this channel a few weeks ago and consumed a lot of its content in little time. I love it. Its so worthy to have channels like this!!! Please keep on doing!!!

I'm rather curious about two things: 1) How are stones/minerals like agates, jasper, morrisonite and others formed, and 2) Why do some minerals fluoresce under UV light?

Some plants are iridescent too! I'm surprised this wasn't brought up. Once again its a bit of a mystery, but might have to do with more efficient photosynthesis in low light conditions.

Here in South Australia we have the blue ant which is actually an iridescent wingless wasp with a heinous sting I can personally attest to.

Please remember to always choose the lesser of two weevils!

Love the combination of demonstrations and explanations and jokes! What wonderful videos! Thanks

I used to draw those feather barbules as an abstract doodle all the time, I had no idea what it was...cool to know it was kinda scientific 😝

I have a chrysina species/jeweled scarab beetle in resin dangling from my neck have been wearing it everyday for years, I was actually holding it up to the sunlight and looking at it when you showed one in the video 🐸 love this video and all your content, thank you for teaching us 💗

the red flash from a Ruby Throated Hummingbird & and the blue green of a Jewel Wasp are some of the most amazing colours in nature i've witnessed

This GUY Dr. Joe Hanson has to be one of the best science communicators and educators I’ve ever seen! Young or old, he manages to capture your attention with his passion! Combined with this awesome channel, it has to be one of my favorite must see channels. Thanks Dr. Joe Hanson for being so incredible! ❤

I was a molecular biology major for two years, but I got distracted by art. I never regretted this change, but I often wonder how different my life would be.

Oh gosh! Got to put up hummingbird feeder! Love the green variations! Have some lovely iridescent 🪲 in my yard. My fav is the iridescent sweat bees and pollination bees. Found out the iridescent pollination bee-flies are actually endangered.

My research involves studying Cyanobacteria and I have always been fascinated with the array of colors packed within these microorganisms. There is deep blue from phycoyanin, light pink from erythrophycocyanin, green from chlorophyll, and yellow from carotenes and xanthophylls. How colorful is the life on Earth!! Thank you, Joe 😀