Some mice tails are secretly reinforced with bony scales, just like dinosaurs

Researchers have serendipitously found that each one species in a mouse genus have tails secretly bolstered with bony scales. Prior to now, just one mammal group — armadillos — had been recognized to own these scales.   

Spiny mice within the genus Acomys, which accommodates 21 species, seem much like widespread mice from the genus Mus however are extra intently associated to the rodent sub-family Gerbillinae, which incorporates gerbils and sand rats. Spiny mice have unusually stiff and bristly hairs, referred to as guard hairs, which defend them from abrasion and moisture.