The female spends considerable time on top of the ice.

When found, the male and female may spend several days together before mating.

It also means that females spend years carrying eggs.

In June 1978, Sharon, a sixteen-year-old female was spending time with her sister and three other males.

Human females, however, spend over one third of their lifespan in a post-reproductive phase.

The females will spend the majority of their lives in their burrows.

Increasing temperature, however, reduces the time the females spend at the nest and there is increased energy cost to cool the eggs.

The female will spend hours inside her nesting box before eggs are laid.

"Two unchaperoned females spending the night in a house with a drunken man," gasped Suzanne.

Because of this, females spend significantly more time feeding from the surface (Donald 2007).