View Full Version : For beekeepers and/or Mike the Teacher
jauble
06-26-2008, 08:49 PM
Can bees see color?
I was wearing yellow and got swarmed but no stings and they landed on me.
edit:Friday called me out
TooLowBrow
06-26-2008, 08:50 PM
Bees are extinct. it happened last year.
Friday
06-26-2008, 08:51 PM
Can bees see color?
I was wearing yellow and got swarmed but no stings and they landed in me.
they landed In you?
'splain please....
jauble
06-26-2008, 08:54 PM
they landed In you?
'splain please....
Why would bees be in a person...thats just silly/german porn
Leticia
06-26-2008, 09:25 PM
lol.
jauble
06-26-2008, 09:30 PM
seriously though...yellow.
....
anything about that?
Leticia
06-26-2008, 09:34 PM
I googled it and got this.
How do bees see? Bees cannot see the color red. But they do see a color we can’t: ultraviolet (UV).
PapaBear
06-26-2008, 09:35 PM
First thing I found... (http://gears.tucson.ars.ag.gov/ic/vision/bee-vision.html)
Worker honey bees have eyes that are divided up into two great ellipses on opposite sides of their head. Each compound eye is made up of about 6,900 individual units/facets packed tightly together as hexagons and known as ommatidia. Each ommatidium is able to capture light rays from a small angle of view. These rays are focused by several lenses onto light sensitive pigment. Once stimulated, these sensory cells pass along nervous impulses coding information on the quality of the light (its wavelength = visible color and plane of polarization) to the optic nerves which eventually reach the optic lobes of the honey bees' brain.
Leticia
06-26-2008, 09:37 PM
Here's more.
In fact, honey bees were thought to be color blind until the pioneering experimental research of the late Dr. Karl von Frisch in Germany during the the early part of this century. He proved that they do in fact have three color (trichromatic) vision in many respects like our own visual system. Karl von Frisch was able to demonstrate that bees had color vision by training them to a little dish of scented sugar water (their sweet reward) set upon a blue square of paper. By randomly placing this blue square in a big "checker board" of gray squares, he could tell that the bees actually saw and recognized/learned where the blue square was positioned. They weren't just relying upon the relative intensity of the squares. This training technique has become the standard for many bee behavioral experiments up to the present day.
Although both honey bees and people have a visual system based upon three-colors, the limits of this color sensitivity are very different. People cannot see very far into the Violet or Ultraviolet region of the electromagnetic visual spectrum. We are essentially blind to wavelengths of light below 400 nanometers/millimicrons (light in this regions is called UV-A and UV-B light). These are the powerful light rays which cause us to tan or sunburn. Bees can see these invisible-to-us rays of light! Another interesting difference happens at the opposite end of the visible spectrum. We can easily see the color of a red sweater or red fire engine (at least many of them used to be red!). To a honey bee, however, the color red is invisible. They see red objects as black, or the absence of color.
PapaBear
06-26-2008, 09:38 PM
Little known fact...
When you Google anything scientific, the information is sucked directly from Mike the Teacher's brain.
AngelAmy
06-26-2008, 09:39 PM
Little known fact...
When you Google anything scientific, the information is sucked directly from Mike the Teacher's brain.
I hope theyre paying him for that
PapaBear
06-26-2008, 09:41 PM
My first wife's hippie step father always said that bees are from space, and wasps and hornets are physical manifestations of human hatred and bad vibes. He was from California, and smoked a lot of pot.
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