Which mollusc is famed for accurately mimicking other marine animals to evade predators?

Mimic Octopus

Which actress portrayed Padmé Amidala in the Star Wars prequel trilogy? Which African animal spends most daylight hours submerged in rivers to avoid sun exposure? Name the virtual reality headset developed and released by Sony for the PlayStation platform. Which bird is famous for imitating human speech? Who was America's first billionaire?