Bluesaint
Player Valuation: £2.5m
A lot of forest dwelling animals can’t see the colour red either. Hunters use red lamps to not give themselves away in the dark.
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Groucho's Fact Hunt
- Thread starter Groucho
- Start date
How did they find that out ?. Serious question
Exactly so
Sadly not Mr Jinx.
Geese get away with it for some reason, but it goes - 1 moose, 3 moose a herd of moose.
They looked at the VAR panel, and found the following facts...
1) Its decisions all go to the red team,
2) There are no moose on the panel.
3) This must be because moose can't see the colour red or there would be moose on the panel.
QED Ernest, QED.
or maybe back in the day some research biologist cut open an eye and looked at the different rods, cones etc and worked it out.
I go with the VAR explanation - much more likely.
summerisle
The rain, it raineth every day
The term 'London Particular', a fog in Victorian London was so called after the colour of a dark brown madeira wine. It's also a soup.
summerisle
The rain, it raineth every day
Canada has more than 2,000,000 lakes.
The most of any Country
The most of any Country
2 Roman Emperors died in York, 1 is still buried there...somewhere.
The other got shipped back to Rome
The other got shipped back to Rome
Black Belt Jones
Player Valuation: £20m
There is no private land ownership in China. No such thing as a freehold where you own the land your house is built on.
These days is actually possible to determine colorvision status via a quick DNA test from shed hair, skin or any tissue that contains DNA. There are genes that make these light-sensitive proteins. Each light-sensitive protein is capable of picking up a particular wave of light: red, green, or blue. These light-sensitive proteins are found in the cells in the back of the retina called "cones." In humans we have all three genes, and thus three types of cones that detect red, green, and blue, respectively, and thus trichromatic ("normal" color) vision (though red-green colorblindness can occur, especially in males). Most mammals that are not primates, such as deer, squirrels, etc., do not have the genes to make all three light-sensitive proteins, so they are dichromatic--they have two of the three genes and thus only two types of cones in their retina, which pick up two colors, usually green and blue. Their dichromacy doesn't enable them to see a full palette of colors and especially red.
Sorry for the pedantry...my colleagues and I have worked on this exact question in lemurs regarding di- versus tri-chromacy, since it turns out that some lemurs are dichromatic and some are trichromatic even if they are members of the same species.
summerisle
The rain, it raineth every day
They used to get mown down at traffic lights