A newborn western lowland gorilla baby, unnamed, is cradled by his mother Rollie at the Regenst …

A newborn western lowland gorilla baby, unnamed, is cradled by his mother Rollie at the Regenst ...

A newborn western lowland gorilla baby, unnamed, is cradled by his mother Rollie at the Regenstein Center for African Apes in Lincoln Park Zoo in Chicago, Tuesday, May 14, 2019. (Ashlee Rezin/Chicago Sun-Times via AP)