Pregnant supermodel Marisa Miller has posed naked for the latest PETA’s latest campaign. The photo shoot was inspired by the documentary “Blackfish” which brought awareness to the abuse of orcas in SeaWorld.

The 36-year-old model, who’s pregnant with her second child, was photographed in a small bathtub for PETA, with the tagline: “SeaWorld: Separating Babies and Mothers Since 1970.”

“Being a mom and seeing Blackfish, it was extremely emotional,” said Miller. “I think any mother knows the sense of protection and connection you have with your baby.”

“Orcas at SeaWorld spend their lives in tiny concrete tanks that, to them, are the size of a bathtub,” Miller said about the inspiration behind the photoshoot.

“Because of their confinement, they can only float listlessly, swim in circles and attack one another until they die — usually far short of their natural life expectancy — from injuries, pneumonia or other captivity-related causes.”