However, in some species, such as rats, vitamin D2 is more effective than D3.

In rare cases, small mammals such as rats are taken.

Especially, when they are hunting small animals, such as rats.

She has also been known to put the minds of her enemies into animals, such as rats.

Other lifeforms such as rats (and humans) can survive in almost any environment.

Very small ear tags are available for laboratory animals such as mice and rats.

Many other burrow-livers such as rats and rabbits produce their young at a similar early stage.

It is also the case that the tests use animals such as rats, not human beings.

Introduced predators such as cats and rats took a toll.

They are primarily threatened by introduced species, such as rats, and habitat loss.