Sprogcast 48 is about paternal mental health, featuring an interview with Dr Andrew Mayers and discussion of an article from Science Weekly. Louise Oliver also talks about her work on Diversity in Infant Feeding. Mark and Karen disagree on whether the brain is gendered at birth, but have reached out to author Gina Rippon to invite her to clear this up on a future episode. Mark tells us that his spirit animal is an armadillo.