Different developmental stages of a venomous animal (e.g. Nematostella vectensis) with a complex life cycle produce vastly different venoms that can serve in different antagonistic interactions with other species.
Early life adversity led to hyper-innervation from the basolateral amygdala to the prefrontal cortex earlier in females than males and disrupted maturation of functional connectivity, which predicted anxiety-like outcomes.
Mice exposed to complex early adversity show similar diffusion MRI changes to those reported in humans and sex-specific changes in connectivity that differentially affect contextual deficits in males and females.
Resetting a young gut microbiota in middle-aged individuals extends life span and slows aging in the naturally short-lived turquoise killifish, a new vertebrate model organism to study how the microbiota affects the aging process.