In a given place, species vary with the seasons as well.

Species that occur in the zone vary according to where they are on the Earth.

Numbers and species of birds that can be seen on the Refuge vary according to season.

Species available vary in different parts of the world.

Different species vary in the ease with which they can be conditioned.

The species, height, and sources of these trees has varied widely over time.

The many species of monkey have varied relationships with humans.

The species varies greatly in color, shape and size, growing to around 70 mm.

Species vary somewhat in the number of primaries they possess.

This species varies in shape, size, color, and pattern of scales.