Skills include comedy, puppetry, acrobatics, equestrianism, bear training, tight rope walking, and juggling.
He was a fixture at the Stardust Resort & Casino starting in the mid-1970s, and his act was featured in Going Ape!, a 1981 comedy film starring Tony Danza and Danny DeVito.
In 1989 a Stardust dancer secretly videotaped Berosini grabbing, slapping, punching and shaking his orangutans before going on stage with them.
[6] The dancer, Ottavio Gesmundo, sent the tapes to People for the Ethical Treatment of Animals, and the resulting outcry forced the Stardust to cancel Berosini's act for a few days.
However, the Nevada Supreme Court threw out the judgment in 1994, saying that the tape was an accurate portrayal of Berosini's behavior and fell within the realm of "protected opinion."
[6][7] This judgment was affirmed on a rehearing of the case a year later, and in 1996, a Nevada District Court judge ordered Berosini to pay a total of $417,000 in attorneys' fees to PETA and PAWS.
[11] Berosini told Harper's Magazine in 1993 that he and his wife received numerous death threats against themselves and their orangutans in the middle of the night.