Are these tennis balls yellow or green? It seems a simple question - the tennis balls are obviously yellow. But some people say they are obviously green. And then there are the people who say they ...

Wimbledon shared how Sir David Attenborough and his love for tennis not only brought the game to television but actually ...

tennis would present a full-color parade of styles for the next four decades. What about the ball? It also became colorized in ’68. That year, Penn introduced what it called an “optic yellow ...

Another factor is that dogs can’t see colors the same way humans do. They have a limited spectrum, and bright yellow—yes, tennis balls are yellow—is one color that stands out to them.