Ariana Richards is throwing it back. In a recent duet video posted to the official Jurassic World account on TikTok, the 43-year-old former child actress recreated an iconic scene from 1993’s Jurassic Park in honor of the blockbuster’s 30th anniversary. The original scene features Richards’ character Lex and her younger brother Tim (Joseph Mazzello) attempting to hide out on Isla …