Jovaro wrote:I am sure you understand that the faster a vehicle moves toward the speed of light that time slows down, and if I remember correctly the vehicle increases in size (mass).
What are you trying to say?
There might be more proof for animals than for the speed of light, but the evidence we have for c shows that it is constant. The evidence we have on animals does not show that they are constant.
The speed of light has been defined as constant it has not been shown to be constant. That Jovaro, is the difference.