New bacterial regulatory interactions can evolve more readily than previously appreciated, providing new insights into the evolution of gene regulation.
Reduced sperm competition in gorillas has led to relaxed selection on male reproductive genes, revealing new genetic contributors to fertility in both gorillas and humans.
Infants as young as 3 months show strong brain responses to music, but structured spontaneous movement responses emerge only by 12 months, suggesting that auditory processing of music precedes the development of complex music-driven motor behavior.
Early mammals became relatively large-bodied before their teeth evolved the diverse shapes and functions associated with different diets and ecological roles.