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Even Charles Darwin was puzzled by the evolution of the vertebrate eye. New research suggests that it traces back to a cyclopean invertebrate with a single eye atop the head. By Carl Zimmer Look at ...

Pattern and diversity in reproduction and development / Lisa A. Levin and Todd S. Bridges -- Variation in the size, energy content, and biochemical composition of invertebrate eggs : correlates to the ...

D-serine is a representative D-form amino acid and has crucial roles in mammals, but its role in non-mammals is unclear. Researchers from Japan recently uncovered a functional role of D-serine in a ...