What is one thing which distinguishes narwhals from dolphins and most other whales? A. They have teeth B. Their neck vertebrae are jointed, not fused C. They have no dorsal fin D. They are Antarctic predators
What tough, tightly woven fabric used to make suits, overcoats, trousers and other garments, traditionally made from worsted wool fibre, was patented by Thomas Burberry in 1888?
