Fossils give scientists information regarding the living conditions and characteristics of organisms that were found on the earth thousands of years ago. how can scientists use the fossil record to provide evidence that evolution of organisms has occured over time?

Amale bird-of-paradise uses a dance to attract mates in which it flaps its tail feathers on the ground and jumps around a potential female mate. a different male bird-of-paradise does a similar dance but it jumps around the female in the opposite direction. the female bird is only attracted to one style of dance, in one direction.