Columbia Encyclopedia
Search results
500 results found
sea turtle
(Encyclopedia)sea turtle, name for several species of large marine turtles found in tropical and subtropical oceans. These turtles are modified for life in the ocean by having flipperlike forelimbs without toes and...man-o'-war bird
(Encyclopedia)man-o'-war bird or frigate-bird, most aerial of the water birds, found in the tropic seas. The man-o'-war bird's wingspread (71⁄2 ft/228.5 cm) is the largest in proportion to its body (3–4 lb/1.4...guillemot
(Encyclopedia)guillemot gĭlˈəmŏtˌ [key], northern sea bird, genus Cephas, of the auk family. The black guillemot, or trystie, Cephus grylle, is about 13 in. (33 cm) long and is very striking in its breeding pl...booby
(Encyclopedia)booby, common name for some members of the family Sulidae, large, streamlined sea birds. Tropical and subtropical members of the family are called boobies; those of northern waters are called gannets....Sydney, city, Australia
(Encyclopedia)Sydney, city (2016 pop. 208,374, Greater Sydney 2016 pop. 4,823,991), capital of New South Wales, SE Australia, surrounding Port Jackson inlet on the Pacific Ocean. Sydney is Australia's largest metro...tuna
(Encyclopedia)tuna or tunny, game and food fishes, the largest members of the family Scombridae (mackerel family) and closely related to the albacore and bonito. They have streamlined bodies with two fins, and five...Jurassic period
(Encyclopedia)Jurassic period jərăsˈĭk [key] [from the Jura Mts.], second period of the Mesozoic era of geologic time, lasting from 213 to 144 million years ago. At the start of the Jurassic most of the contine...salinity of ocean water
(Encyclopedia)salinity of ocean water: see ocean. ...tide
(Encyclopedia)tide, alternate and regular rise and fall of sea level in oceans and other large bodies of water. These changes are caused by the gravitational attraction of the moon and, to a lesser extent, of the s...Northern Pacific Railway
(Encyclopedia)Northern Pacific Railway, former American rail line, following the northern route from Duluth and St. Paul, Minn., to Seattle, Wash., and Portland, Oreg. The Northern Pacific RR Company was chartered ...Browse by Subject
- Earth and the Environment +-
- History +-
- Literature and the Arts +-
- Medicine +-
- People +-
- Philosophy and Religion +-
-
Places
+-
- Africa
- Asia
- Australia and Oceania
- Britain, Ireland, France, and the Low Countries
- Commonwealth of Independent States and the Baltic Nations
- Germany, Scandinavia, and Central Europe
- Latin America and the Caribbean
- Oceans, Continents, and Polar Regions
- Spain, Portugal, Italy, Greece, and the Balkans
- United States, Canada, and Greenland
- Plants and Animals +-
- Science and Technology +-
- Social Sciences and the Law +-
- Sports and Everyday Life +-
