Big-eared hopping mouse

The big-eared hopping mouse (Notomys macrotis) is an extinct species of mouse that lived in the Moore River area of south-western Australia. The Wikipedia article that serves as this entry's source describes a small, rat-sized animal resembling a tiny kangaroo, with large eyes and ears and a brush-tipped tail, which walked on four legs when moving slowly and bounded on its enlarged, padded hind feet when moving fast. It mainly lived in sand dunes and built nests of leaves and other organic material. It was last collected on 19 July 1843 by John Gilbert and is known from two damaged specimens in the Natural History Museum in London. Feral cats, exotic disease and habitat loss are the causes the article discusses.