A large-scale phylogenetic inference of the ribonucleotide reductase family reveals a new distinct clade with implications on how nature adapted to environmental changes.
Julian Melgar, Mads F Schou ... Charlie K Cornwallis
Experimental manipulations of social groups of ostriches show that the benefits of cooperative parental care for females, and the costs of sexual competition for males, lead to sex differences in optimal group sizes.
Nicholas M Grebe, Jean Paul Hirwa ... Stacy Rosenbaum
Mountain gorillas, who live in close-knit social groups with siblings and non-siblings of both sexes throughout their lives, show distinct behavioral biases towards maternal versus paternal kin.
Susanne Tilk, Svyatoslav Tkachenko ... Christopher D McFarland
The absence of negative selection observed in most cancer genomes can be explained by the intrinsic genome-wide linkage in somatic evolution and creates a substantial proteotoxic load.
Verena Behringer, Andreas Berghänel ... Gottfried Hohmann
In wild bonobos, sibling birth induced a sudden increase in urinary cortisol levels in the older offspring, a physiological response that occurred in all subjects and was independent of their age.
Pierrick Bourrat, Guilhem Doulcier ... Katrin Hammerschmidt
A new model describes evolutionary transitions in individuality in terms of tradeoff and tradeoff-breaking events as opposed to changes in the nature of fitness.
