though usually hidden to the human eye, naturally occurring marine biofluorescence can be seen under certain wavelengths of light (like ultraviolet), which causes the cells of the organisms seen here to absorb the light — and some of the photon’s energy — and then emit back a now less energetic light that consequently has a longer wavelength and thus a different colour. (biofluorescence is not to be confused with bioluminescence)  

photos by (click pic) daniel stoupin, alexander semenov, bent christensenlouise murray, and american museum of natural history (click pic for species)


For this giveaway, I’m partnering with MantraBand and giving away two inspirational bracelets. They have beautiful sayings like ones in the photo, and MANY more. This is open to ANYONE in the world.

Here’s the prize:

You get to choose two custom bracelets (a $70 value) for FREE.

Here are the rules:

1) Must be following bright-sunny-sky

2) Reblog this post (each reblog is an entry, likes won’t count)

For extra entries:

1) Go to their page here and tell me your top 3 favorite sayings for the bracelets

**For every message I get, it will count as an entry for that blog. You can only be entered 1 extra time**

2) If you like their Instagram it is another entry, just message me proof.

This giveaway will last until May 15. I will randomly choose a winner and they will have 48 hours to get back to me before another winner is chosen. The winner must be willing to give their address to have the product sent to them.

Any questions, just message me and I’d love to answer them :)