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. 2019 Jul 24;286(1907):20190929. doi: 10.1098/rspb.2019.0929

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© 2019 The Authors.

Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited.

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Figure 2. — Density plots for winter-active and summer-active populations plotted against latitude and against the average temperature of the warmest month.