Eutherian mammals living in China after the end-Cretaceous extinctions evolved larger tooth sizes first before becoming more specialized in their biting performance, mirroring a similar pattern in brain evolution.
Tom Louis Ducrocq, Damien Laporte, Bertrand Daignan-Fornier
A genetic analysis in yeast establishes that multicellularity can arise as a side-effect (passenger phenotype) of a completely independent fitness advantage unrelated to the benefits of group formation itself.
Analyses of two independent phylogenomic datasets suggest an explosive radiation at the origin of Spiralia, with implications for understanding the group's evolutionary history.
