Its morphology, however, is variable between different groups of snails.

Flow levels are highly variable, both during the day and between summers, with the river failing to reach the lake some years.

The basic idea is to look at certain loci (places) in the genome which are highly variable between people.

Tooth count is variable between individuals and increases with skull size.

The age at which bears reach sexual maturity is highly variable, both between and within species.

The season when the organisms spawn is variable between locations.

Their height, width and number of cusps is variable between species.

Just how big the adenoids become is quite variable between individual children.

Indeed the phases seem to be variable between specific arts.

The intensity of the eye colour is variable between frogs.