New Aristolochiaceae liana species found in Yunnan, China

Traditionally, the genus Aristolochia L. sensu lato is the largest genus in the family Aristolochiaceae. According to recent morphological and phylogenetic studies, Aristolochia subgen. Siphisia has been reintroduced as a ...

The origins of farming insects

A beetle bores a tree trunk to build a gallery in the wood in order to protect its lay. As it digs the tunnel, it spreads ambrosia fungal spores that will feed the larvae. When these bore another tree, the adult beetles will ...

Latitudinal gradient of plant phylogenetic diversity explained

Why are there so many species in the tropics? For centuries, scientists have been searching for the causes of the latitudinal gradient in species diversity—a pattern that has been documented for most groups of living species, ...

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