A tropical tree acts as a fickle but pragmatic landlord, report researchers in Brazil.
INVITATION DROPPED. Young leaves of an Amazonian tree grow pairs of pockets at their base, perfect for ant shelters. As the tree matures and opens vulnerable blooms, leaves lose their pockets. Oecologia
This small tree of the central Amazon, Hirtella myrmecophila, grows a pair of little pouches at the base of young leaves.
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