Named Natovenator polydontus, this creature had a streamlined body, much like modern diving birds. But unlike birds, it wasn’t feathered. This discovery sheds new light on how body shapes ...

we say the body is streamlined, and when it is dominated by pressure drag, we say the body is bluff. Whether the flow is viscous-drag dominated or pressure-drag dominated depends entirely on the shape ...

Some dogs are built to swim, with a streamlined body shape, strong muscles, and – like ducks – webbed feet to propel them through the waves. These breeds tend to have innate swimming instincts ...

A streamlined body shape and a slippery body surface reduce friction and ease the forward motion. Other fishes propel themselves forward by using their fins — undulating the long dorsal or anal ...

Sea turtles are well suited to swimming owing to their streamlined body and flippers ... we found that a robot design that treats body shape and behaviour as variables that can be adjusted ...