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Chemosynthesis-based community on the East Pacific Rise.
Change in American Gender Attitudes, 1977-2006 Over recent decades, views of gender roles have beco
The American Sign Language Alphabet.
In 1979 Islamic militants held American embassy workers hostage in Tehran.
American people aren't the only ones getting bigger—American pets are also putting on pounds
Infant and Toddler Development and Responsive Program Planning: A Relationship-Based Approach