Fig. 3.
Morphological exaptations and behavioural traits proposed to negate selection pressures for evolving molecular resistance in snake‐eating birds such as the secretary bird (Sagittarius serpentarius). This figure represents multiple examples of traits unique to birds, and particularly to snake‐eating birds, that might contribute to the prevention of snakebite envenomation. Drawing from an original photograph by Jason Shallcross, with permission.