why do bulls get 'angry' when they see red colour even though they are colour blind?
600796
They don't.  That's a myth.  You yourself point out the fact that they're color blind.
307812
Black for race. Red for bulls. Green for his thousand indorsements.
557077
In order to withstand pressure, their cells must counterbalance the extreme pressure outside. Also, animals at such depths are generally colourless and are blind. They navigate by sound.
419796
Deer are dichromatic.  They see the world with only two primary colors instead of the three that we see it with.
4964
A rarely good question asked in this section. The color reflected depends on the texture and size of particles in the back surface of the eyes of an animal. Some night vision animals have a better reflecting surface to point any light not captured by the retina back to its light-sensing cells. So light intensity varies, as well as color. The color is not always the same for a certain species in the sense that the color you perceive depends on the angle at which you look at their eyes (you might be able to see the whole spectrum of visible light in some cases).
454908
because red is a traditional "LOOK OUT WARNING" color
764385
G'day Alli Oop94,\n\nThank you for your question.\n\nCows can see in things in front of them depending on where they are.\n\nCows are fisheyed with very different eyesight to humans.  There eyesight is poor and they need to lower their heads to see things on the ground. They will baulk at a shadow then lower their head to look at it further. Designers of cattle handling facilities are taking cows poor eyesight into consideration in design.\n\nThey are also colourblind so the legend that bulls get enraged by the colour red is a myth.\n\nI have attached sources for your reference.\n\nRegards
74419
You can't truly show them anything exept in words. You can let their hands feel the soft of arose and they may never now whether it's blood red, or sunrise orange. Only a master poet could describe color in a way as to let the blind see for an instant. So descrptive as to flash the color in unseeing eyes without using words in relation to color at all. Only sayings like "Black as the darkness only they would know" would be able to spark such a colorful picture panted in ony blacks Behind the eyes that could not reach the light.\nSorry if that sounded like rambling.
330696
Insects are attracted to the light reflected of the plants and they are most certainly NOT color-blind. Bees can see into the ultra-violet end of the spectrum farther than humans so they don't see the same colors we do.
797052
There is no ONE kind of animal.... several species can see color to some extent and it is difficult to prove since animals can not tell us!!\n\nHowever go to this link and it will describe many animals that can see color to some extent.\nhttp://webexhibits.org/causesofcolor/17.html\nsome even better than humans (pigeons and mantis shrimp!)
332439
It's the way they wave the capes, bulls are actually colorblind, they'll do it to any color.
335943
Okay.... blood, in general, no matter what species it comes from is blue when it is oxygen deficient (in our veins)... and red when it has oxygen (in our arteries)... if a snake is cut open (while alive.... or right after being killed) then all of the blood will be red, regardless if you hit a vein or artery..... because when the blood is given oxygen it turns red.\n\n-Z
1048578
you ask them with an experiment. You train them to give you a certain response upon presentation of a color (it can be simpler than counting objects, e.g. bees learn quickly learn to fly to and land on a colored piece of paper if you put some sugar water on it).\n\nAfter the animal is trained you present it with the color and with a gray card of equal brightness (like you would photograph the colored card using a black and white film). \n\nThen watch the response of the animal. Does it always select the blue card in preference of the gray card, or can't it tell the difference. For the example of the bee, it would land equally often on each card if it can't tell the difference. At this stage of experiment you would have to have removed the sugar water so it can't smell that or see that. \n\nIt gets a bit more complicated than that, because you really have to check that your gray card is perceived as of equal brightness to the colored card by the animal. You can't assume that because it may be to us or to a camera it is the same for the animal. The easiest solution to that is to present cards with a range of gray values, but you can also figure things out doing more experiments. \n\nYou can check a whole range of colors this way and so can figure out which colors animals see. Some animals see more colors than us, some see less, others are really colorblind.
302759
thats wht even i think many times. may it could be because of the unusual birds and insects which come out during only night. it is definitely seeing something unusual thts why it is barking.or probably the dog is seeing something else entering its teritory. i have also heard tht dogs have the sense of seeing dead souls. may be its seeing some soul around it, which may be annoying them.
201164
its a myth bulls are colour blind, thay will charge at anything that p***** them off
49214
When you feel certain emotions (like embarassment), then your body reacts by releasing chemicals that cause stuff in your body to happen. When you become embarrassed, the empty blood vessels in your cheeks get filled up with blood. This causes your face to get red.\n\n(The reason your body does this is because it associates certain emotions with feeling cold, so it pumps more warm blood to warm you up.)
622378
Oh, i am the same way, once my adrenaline peaks back the f*ck up!One of my major things that upsets me easily is seeing someone do something cruel to animals.one time some one was acting like they were gonna shoot my cat with a b.b gun, my adrenaline sky rocketed and i beat their @$$!