Sarah (full name Sarah Anne) (August 1959 – July 2019) Sarah was one of nine chimpanzees in David Premack's psychology laboratory in Pennsylvania. Sarah was born in Africa in 1959. She first worked in Missouri, then in Santa Barbara, and then Pennsylvania. She first was exposed to language token training in 1967.
Sarah, along with three other chimpanzees, were exposed to language token training. One of the chimpanzees failed to learn a single word, but Sarah, Elizabeth, and Peony were able to parse and also produce streams of tokens which obeyed a grammar.
She used a special board with plastic symbols to correctly parse various syntactic expressions including if-then-else. Sarah was even able to recognize colors and connect them with matching objects, a talent that Premack noted, doubting that a pigeon could have. The following month, the Chimp Center was closed and OSU sent the chimps to a private animal collection in Texas. Subsequently, the chimps were transferred to another chimpanzee sanctuary, Chimp Haven, in Louisiana. At Chimp Haven, Sarah was known for her blanket nesting techniques. Her favorite treat was M&M's.
Sarah died in July 2019, just before her 60th birthday.