The purely brown mice, she said, must be descended from the genes contributed by the embryonic stem cell.

These brown mice, Dr. Robertson said, can be of two types.

No wonder you're trying to make yourself look like a little brown mouse.

Six fat brown mice raced across the tiles of the hall.

It was a perfectly ordinary brown mouse, except for the way it seemed to be checking into the cells.

He was also the first to scientifically described a type of brown mouse eared bat.

She shimmered, and suddenly was a brown mouse.

He wondered idly how long ago it was when he'd realised that she wasn't a brown mouse at all.

Because the mice are genetically different, he said, the brown mouse began rejecting the new heart immediately.

She looks like a big brown mouse with wings.