What does accident of nature mean

I think it would mean thet two animals for example a bear and a tiger mated and were never meant to and it accedentally created a new spieces

I'M  not sure but im   going to give you two idea one  accident of nature is  how sometime when there is a big storm happened in some area in it destroy every things. THE second one is may it  mean what happened in nature in if effect that pace .or

The linear perspective changed the quality of art because it gave art a sense of reality. it gave the illusion that the background and surroundings were actually close and/or far and a sense of depth. linear perspective change the quality of art following its birth the renaissance period as they want the art to be more realistic and they believe one way to achieve it is to use the method of linear perspective. it uses the principle of math to realistically portray space and depth in art.