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Miocene epoch
(Encyclopedia)Miocene epoch mīˈəsēn [key], fourth epoch of the Tertiary period in the Cenozoic era of geologic time (see Geologic Timescale, tablegeologic timescale, table), lasting from around 24.6 to 5.1 mill...Cenozoic era
(Encyclopedia)Cenozoic era sēnəzōˈĭk, sĕn– [key], last major division of geologic time (see Geologic Timescale, tablegeologic timescale, table) lasting from 65 million years ago to the present. The Cenozoic...piracy
(Encyclopedia)piracy, robbery committed or attempted on the high seas. It is distinguished from privateering in that the pirate holds no commission from and receives the protection of no nation but usually attacks ...Arctic Ocean
(Encyclopedia)Arctic Ocean, the smallest ocean, c.5,400,000 sq mi (13,986,000 sq km), located entirely within the Arctic Circle and occupying the region around the North Pole. The Arctic basin was almost wholly u...Cnidaria
(Encyclopedia) CE5 Internal anatomy of Hydra, representative of the phylum Cnidaria Cnidaria səlĕntəräˈtə [key], phylum of invertebrate animals comprising the sea anemones, corals, jellyfish, and hydroids....Pyrenees
(Encyclopedia)Pyrenees pĭrˈənēz [key], Span. Pirineos, Fr. Pyrénées, mountain chain of SW Europe, 21,380 sq mi (55,374 sq km), between France and Spain, a formidable barrier between the Iberian Peninsula and ...Rhine
(Encyclopedia)Rhine rīn [key], Du. Rijn, Fr. Rhin, Ger. Rhein, Lat. Rhenus, principal river of Europe, c.820 mi (1,320 km) long. It rises in the Swiss Alps and flows generally north, passing through or bordering o...prohibition
(Encyclopedia)prohibition, legal prevention of the manufacture, transportation, and sale of alcoholic beverages, the extreme of the regulatory liquor laws. The modern movement for prohibition had its main growth in...canoe
(Encyclopedia)canoe kəno͞oˈ [key], long, narrow watercraft with sharp ends originally used by most peoples. It is usually propelled by means of paddles, although sails and, more recently, outboard motors are als...dolphin, aquatic mammal
(Encyclopedia)dolphin, aquatic mammal, any of the small toothed whales of the family Delphinidae, numbering more than 50 species. These include the true, or beaked, dolphins, the killer whale, the pilot whale, and ...Browse by Subject
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