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This week's picks

Functional Extinction of Birds Drives Rapid Evolutionary Changes in Seed Size "areas deprived of large avian frugivores for several decades present smaller seeds than nondefaunated forests, with negative consequences for palm regeneration"

Molecular evolution of peptidergic signaling systems in bilaterians "phylogenetic reconstruction tools... show that a large fraction of human PSs [peptide-based signaling systems] were already present in the last common ancestor of flies, mollusks, urchins, and mammals"

Honey constituents up-regulate detoxification and immunity genes in the western honey bee Apis mellifera "apicultural use of honey substitutes, including high-fructose corn syrup, may thus compromise the ability of honey bees to cope with pesticides and pathogens and contribute to colony losses"

Palaeontological evidence for an Oligocene divergence between Old World monkeys and apes" "the oldest known fossil 'ape', represented by a partial mandible... the oldest stem member of the Old World monkey clade, represented by a lower third molar... recovered from a precisely dated 25.2-Myr-old stratum in... the East African Rift in Tanzania."

Experimental evidence that evolutionarily diverse assemblages result in higher productivity "Species produced more biomass than predicted from their monocultures when they were in plots with distantly related species and produced the amount of biomass predicted from monoculture when sown with close relatives."

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