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breast cancer cells

BREAKING AWAY  Breast cancer cells (shown growing in a lab dish) move through the body in clusters. New research may shed light on how the clusters enter the bloodstream.

dwarf mongoose

JUST YOU WAIT  It takes a while for dwarf mongoose immigrants to adjust to life in a new pack, but eventually, group members benefit from newcomers’ contributions.

Titan map

NORTHERN LAKES  Radar images of Titan’s poles show lakes that may form like Earth’s sinkholes. A new topographic map suggests these hydrocarbon lakes may be connected through Titan’s equivalent of groundwater.

marsupial lion illustration

NEW MARSUPIAL LION  A newly named species of extinct marsupial lion (illustrated) was dog-sized but probably as fierce as anything in its forest. 



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