A scientific debate has raged for decades about whether plants evolve to produce fruits of particular colours to attract particular animals to help spread their seeds. Because plants can't move, many of them rely on animals to spread and plant their seeds. So it might seem obvious that plants would evolve and produce fruit of the right colour to attract the right animals to eat them. Eye of the beholderOne challenge has been that colour vision varies widely in animals, and most animals see colours very differently from the way humans — including scientists — do. "Once you start hurting either plants or animals, you risk interfering with a very complicated network of interactions."

Source: CBC News September 26, 2018 08:00 UTC