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Many modern birds are capable of seeing into the ultraviolet regions

Many modern birds are capable of seeing into the ultraviolet regions


And so we end up with the most conservative option: Neornithes (or Aves), the group that contains all modern birds going back to their last common ancestor.

Fig. 1.

Nix Draws Stuff — moonsofavalon: collegiategrief: alphynix: .

Birds can see using a selection of these cone types, shown here in relation to

If you're not into the idea of calling things like Pteranodon and Triceratops “birds”, then maybe we should go more specific and use the presence of ...

The developmental time course and pattern of expression of BCO2, RDH12, and RETSAT are consistent with their proposed role in apocarotenoid metabolism.

Avian color vision is mediated by four single cone photoreceptors that are tuned by cone oil droplet spectral filters.

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Confirmation of the 11',12' saturation of dihydrogalloxanthin via derivatization and ozonolysis.

Graphic showing variation in visual acuity of different species of birds

Differences in transcriptional strand bias. Each point in A and B represents a mutation type with an A or C ancestral allele. The x coordinate of each point ...

Illustration of how birds may see magnetic fields

The three major apocarotenoids present in the avian retina have distinct light absorbance spectra.

The spectral filtering of the C-type oil droplet is nearly optimal for color discrimination in bright light conditions.

animalids: “ Zorse (Equus ferus caballus x Equus quagga) Photo by Waterhill Ranch

Birds See In More 'Color' Than We Do: Researchers Recreate Avian-Eye

Shifts in the spectral filtering of the SWS2 cone between VS and UVS species are the result of changes in apocarotenoid composition.


Graphic showing chemical model of how birds may see magnetic fields

Ultraviolet vision

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The absorbance spectra of Apo2 and 12'-Apo-β-carotene-3,12'-diol (fringillixanthin) are nearly identical.

Many modern birds are capable of seeing into the ultraviolet regions of the electromagnetic spectrum,

BCO2, RDH12, and RETSAT are sufficient to produce dihydrogalloxanthin from zeaxanthin.

Happy Earth Day! This is Thomson, a non-releasable great grey owl (

SC Psychological Enterprises Ltd.

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Graph showing variation in perception of sounds of different frequencies by birds

Psychology Today

The evolution of the UV sensitive SWS1 opsin is associated with changes in whole retina apocarotenoid composition.


The avian retina contains multiple apocarotenoids that absorb different portions of the light spectrum.

Parts of the electromagnetic spectrum

plantsexuals: “ fxstoon: “ adelnoo…


Ultraviolet LEDs[edit]

Bird Sense: What It's Like to Be a Bird 1st Edition, Kindle Edition

Ultraviolet photography is something that relatively few photographers explore, but it's a fascinating realm to explore with less of an investment in ...


An electromagnetic spectrum is shown. Different wave category regions are indicated using double sided arrows

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is it alright to tag these as paleoart when they dont represent a specific species or are accurate at all? or is that specifically reserved for accurate, ...

Modified from kevencollins123 photo-Creative Commons License

Spectral characteristics of retinal photoreceptors and ocular media in... | Download Scientific Diagram


5 Transformative Methods to ACTIVATE Your Pineal Gland and Tap Into Your Superhuman Potential

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Photoreception and vision in the ultraviolet | Journal of Experimental Biology

Contemporary Genetics

Modified from Steve Sayles photo-Creative Commons License

Various regional LT departures from the 30-year (1981-2010) average for the last 16 months are:

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The visible strip of the electromagnetic spectrum is highlighted and shown in the picture. The

Drawing of an owl eye

food capture: animals

The gape flange on this juvenile house sparrow is the yellowish region at the base of the beak.

Thank you to Jessica Iraci for the beautiful poster this year!!!

The structure and predicted wavelength of maximum absorbance for galloxanthin and the eight possible monosaturated forms of galloxanthin.

Light-vented bulbul Pycnonotus sinensis . Different individuals seen, variously, in an ornamental



Electromagnetic Radiation Spectrum

Using light beyond our own spectrum is a great way to start these explorations—enter the world of ultraviolet photography.

Radiation reaching Earth

MacKinnon & Phillipps (2000), A Field Guide to the Birds of China

Drawing showing how owls can rotate their head 270 degrees

Tail-flashing as an anti-predator signal in small wintering birds

A bird appears on many Visa credit cards when they are held under a UV light source

... 20 minutes in the morning ...


Page 1

(Sorry, Ray!)

Humans are limited in their sensitivity to ultraviolet radiation due to absorption by the cornea of shorter wavelengths, and by strong absorption in the eye ...

Avian Eye – the High Technology of Nature

The geographic pattern of 23-years of sea level rise from satellite altimeter data looks similar to the pattern of water vapor increase (percent per decade) ...

Today's bird is: Ari the parrotlet!

Centennial-scale solar forcing of the South American Monsoon System recorded in stalagmites | Scientific Reports

Marvin Kuo photo - Creative Commons License


Seabirds such as terns and gulls that feed at the surface or plunge for food have red oil droplets in the cones of their retinas. This improves contrast and ...

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Figure 6


Humans have a magnetic sensor in our eyes, but can we detect magnetic fields?

A collection of mineral samples brilliantly fluorescing at various wavelengths as seen while being irradiated by UV light.

Drawing showing location of the central and temporal foveas in a avian eye

Oriental magpie-robin Copsychus saularis male and female (male at top, female below

Migratory species are more successful at occupying patches. By Sergey Uryadnikov | Shutterstock.com

Climate Change: Worried About A 2 Degree Rise In Temperatures? Don't Be

The Electromagnetic Spectrum

2017, “Reconstructions of the 1900–2015 Greenland ice sheet surface mass balance using the regional climate MAR model”)