Karl von Frisch studied the interactions between bees and flowers. He wanted to know how bees select which flower to go to, and in particular whether the bees could see different flower colors, and therefore select flowers based on their color. In his first experiment, von Frisch put out pieces of red- and blue-colored paper, each of which had a bowl on top. In the bowl on the blue paper he put sugar water; he left the bowl on the red paper empty. Bees discovered the sugar water in the bowl on the blue paper and ate it, returning again and again with other bees to get more.
After a while, von Frisch took away the papers and bowls. He replaced them with two new bowls with colored paper, identical to the first pair except that both bowls were empty this time. He found that bees swarmed around the bowl on the blue paper, ignoring the bowl on the red paper.

Note that von Frisch already knew that bees like sugar water; this issue is not being tested in this experiment.

Question: What was von Frisch’s hypothesis?

***My answer: I thought that the hypothesis was if bees are attracted to the flower by its color, then the bees select which flower to go to. *then bees have color vision*

But I am so confused! It does not sound right to me.

Bees do have colour vision but on a broader spectrum, they can see yellow.. blue and green, but the honey bee cannot see red, it is invisible.

Being that they cannot see red, their colour vision is different to ours.

Their yellow is not seen as we see it, also any other colour we see,would not be how the bee see's it... a bit difficult to explain so I hope you understand what I mean.