one meter ayaw
Ants can detect the scent of sugar from up to 20 feet away.
Ants can detect food using their sense of smell from up to 20 feet away.
Stay away as far as you can.
Lions live in grasslands as it provides a large source of food and usually water is not too far away.
Lions can see the same colors as we can, but they can't see as far away as we can.
Microwaves
Bed bugs can detect carbon dioxide from up to 5 feet away to locate their human hosts.
The light itself has no limit, unless it runs into something on the way that absorbs it (soaks it up). The main question is not "How far can the light go ?" The main question is "How far away from the source is your equipment good enough to detect the light ?" With current astronomical equipment, we can detect and measure light coming from 13 billion light years away.
no dogs are not related to lions lions are cats and dogs are canines
Up to 6 miles away? Yes, it is up to 6 miles away to hear an adult lions roar.
None we can detect, since Neptune is to far away and has too thick an atmosphere fo us to be able to see the surface.
So far, no "planet like Earth" has been discovered. However, our telescopes are only barely good enough to be able to detect a planet the size of Earth that far away.