Leopard slugs were probably named for their brown and gray spots, but certainly not for their speed. Leopard slugs are quiet and slow; they typically come at night (nocturnal) to eat plants, fungi, and even other slugs.
Leopard slugs tend to live near humans in damp gardens, cellars, or woods. they hide under stones or in the cracks of fallen trees. They can vary in color from brown or grey to yellowish-white.