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The small dorsal fin of this blue whale is just visible on the far left.
Photograph of the flea that transmits Yersinia pestis to cause bubonic plague, called the oriental r
Because of immature visual-motor coordination, young children find it hard to throw and catch small ...
Press Bladder meridian points along upper orbital ridge with fingertips, from B-1 on the inside ...
Three-dimensional models of the small and large subunits of ribosomes.