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sea lion

(Encyclopedia) sea lion, fin-footed marine mammal of the eared seal family (Otariidae). Like the other member of this family, the fur seal, the sea lion is distinguished from the true seal by its…

crab

(Encyclopedia) crab, crustacean with an enlarged cephalothorax covered by a broad, flat shell called the carapace. Extending from the cephalothorax are the various appendages: five pairs of legs, the…

horseshoe crab

(Encyclopedia) horseshoe crab, large, primitive marine arthropod of the family Limulidae, related to the spider and scorpion and sometimes called a king crab (a name also used for the largest of the…

sea star

(Encyclopedia) sea star, also called starfish, echinoderm of the class Asteroidae, common in tide pools. Sea stars vary in size from under 1&fslsh;2 in. (1.3 cm) to over 3 ft (90 cm) in diameter…

topology

(Encyclopedia) CE5 Möbius strip: On the ordinary flat loop (A), an ant walking along the middle of the strip will pass only around the outside of the strip. If the strip is cut along the dotted…

Hamer, Fannie Lou

(Encyclopedia) Hamer, Fannie Lou, 1917–1977, U.S. voting rights activist and civil rights leader, b. Montgomery County, Miss. Fannie Lou Hamer was the…

inflection

(Encyclopedia) inflection, in grammar. In many languages, words or parts of words are arranged in formally similar sets consisting of a root, or base, and various affixes. Thus walking, walks, walker…

track and field athletics

(Encyclopedia) track and field athletics or athletics, sports of foot racing, hurdling, jumping, vaulting, and throwing varied weights and objects. They are usually separated into two categories:…

crustacean

(Encyclopedia) CE5 Internal anatomy of a female crayfish, representative of the class Crustacea crustaceancrustaceankrŭstāˈshən [key], primarily aquatic arthropod of the subphylum Crustacea. Most…

infancy

(Encyclopedia) infancy, stage of human development lasting from birth to approximately two years of age. The hallmarks of infancy are physical growth, motor development, vocal development, and…