keel+upward
21Deck (ship) — For other uses, see Deck. A deck is a permanent covering over a compartment or a hull[1] of a ship. On a boat or ship, the primary deck is the horizontal structure which forms the roof for the hull, which both strengthens the hull and serves as… …
22Confuciusornis — Temporal range: Early Cretaceous, 125–120 Ma …
23USS Viburnum (AN-57) — USS Viburnum (AN 57/YN 76) was a Ailanthus class net laying ship which served with the U.S. Navy in the Pacific Ocean theatre of operations. While operating in the Caroline Islands, she was severely damaged when struck by what appeared to be a… …
24clupeiform — ▪ fish Introduction any member of the superorder Clupeomorpha, a group of bony fishes (bony fish) with one living order, the Clupeiformes, that contains some of the world s most numerous and economically important fishes (fish). The order… …
25Submarine — For other uses, see Submarine (disambiguation). A Japan Maritime Self Defense Force Oyashio class submarine in 2006 A submarine is a watercraft capable of independent operation below the surface of the water. It differs from a submersible, which… …
26Bird flight — Flight is the main mode of locomotion used by most of the world s bird species. Flight assists birds while feeding, breeding and avoiding predators.Evolution of bird flightMost paleontologists agree that birds evolved from small theropod… …
27perciform — ▪ fish order Introduction any member of the order Perciformes, a group of bony fishes with more than 6,000 species placed in about 150 families. The order is the largest group of fishes in the world today. Perciform fishes occur in… …
28RMS Queen Elizabeth 2 — ( QE2 ) is a Cunard Line ocean liner named after the earlier Cunard liner RMS|Queen Elizabeth, which in turn was named after Elizabeth Bowes Lyon, the Queen consort of George VI. She was the flagship of the line from 1969 until succeeded by… …
29Mini Transat 6.50 — also known as Transat 650 is a solo transatlantic yacht race that starts in France and ends in Brasil covering over 4000 miles with a stop in the Madeira or the Canary Islands. The yachts are very small with respect to the race, and are… …
30List of Chinese inventions — A bronze Chinese crossbow mechanism with a buttplate (the wooden components have …
