Readers discuss accessible images in print and potassium’s climate potential

Accessible images

A recent study calls into question the long-standing assumption that male mammals tend to be larger than females, Jonathan Lambert reported in “Mammal size rule needs rethinking” (SN: 4/6/24, p. 12).

Reader Bernard Larner pointed out that the chart in the story showing rates of sexual size dimorphism in different mammalian orders was not accessible to people who have red-green color blindness.