A study has shown that ghost bats have dialects: their social calls vary depending on the colony. At the same time, their echolocation signals remain stable thanks to evolutionary mechanisms.
A new study has shown that the closest unicellular relatives of animals can form multicellular structures either by cell division or by the fusion of individual cells, choosing their strategy depending on environmental conditions. This discovery changes our understanding of the origins of multicellularity and the evolution of animals.
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