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Cover Figure

COVER This week features a Teaching Resource on β-catenin signaling during embryo development. The image depicts the accumulation of β-catenin in a Xenopus embryo. [Image: Cameron Slayden, AAAS]

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Science Signaling. ISSN 1937-9145 (online), 1945-0877 (print). Pre-2008: Science's STKE. ISSN 1525-8882