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Divers in the Zodiac head out from the ship for a night dive. (Photo by Larry Madin, Woods Hole Oceanographic InstitutiThis graph shows the time it takes a salp to move food completely through its gut, in relation to the size of the animals.

This graph shows the size of developing embryos inside female aggregations of salps, relative to the size (body length) of the aggregate. If both mothers and embryos grew at the same rate, the line would be straight, but the line curves up, which shows that the embryos grow faster. Two of the aggregates had much bigger embryos than expected and these data points are far to the left of the line. The N=43 at the top means that the number of salps measured was 43. There are two numbers on the left that represent the results of statistical analysis to tell whether the data and line are likely to be real results. The R2 number expresses how well the line “fits” the data points: 0.7846 is a pretty good fit. (Data from Larry Madin, Woods Hole Oceanographic Institution, L.M. Gould cruise, 2006.)

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