Which of the following is an example of temporal isolation between species? 1)Populations of leopard frogs and wood frogs are separated by a mountain range.
2)Eastern and Western Meadowlarks have different songs they sing to indicate a readiness to mate.
3)The sexual organs of the Grey Wolf and Northern Coyote are too different to mate.
4)Western spotted skunks mate in the summer while Eastern spotted skunks mate in the winter.