The Houston Zoo’s Asian elephant herd gained 9,500 pounds following the arrival of Chuck the bull elephant.Chuck was moved following a recommendation from the Association of Zoos and Aquariums (AZA) Asian elephant Species Survival Plan (SSP), a program which aims to ensure a genetically diverse and “biologically sound population” the zoo said.Chuck will be living with a multi-generational herd that includes Thailand (58), Tucker (19), and Nelson (4), and he’ll also be able to meet the females next door.According to the Houston Zoo, Chuck’s big frame comes with a big personality.“He is known to be a social butterfly who really enjoys being around other elephants. He occasionally gets a case of FOMO, when he thinks other elephants are leaving without him and begins to vocalize and kick his feet around. Chuck is high energy, very intelligent, and an affectionate elephant,” it said. Credit: Kevin Kendrick/Houston Zoo via Storyful