A T-Rex Could See Really Well

The Tyrannosaurus Rex was an exceptionally dangerous predator, possessing vision significantly sharper than that of humans and even falcons. These massive carnivores could also perceive a broader spectrum of colors, including ultraviolet, and had a keen sense of smell, allowing them to detect prey even if it stood still. Adding to their formidable capabilities, T-Rex were surprisingly fast, able to outpace top human sprinters.
Yeah, like rainbows coming out of my a$$.