The cat first appears in painting and relief at the end of the Old Kingdom, and this cosmetic jar is the earliest-known three-dimensional representation of the animal in Egyptian art. | Cosmetic Vessel in the Shape of a Cat. Middle Kingdom, Dynasty 12, early, ca. 1990–1900 B.C. Egypt. Purchase, Lila Acheson Wallace Gift, 1990 (1990.59.1)
Hydrothermal vent worms are so tiny that you can't see them. They live around the hydrothermal vents on the abyssal plain of the ocean floor, which is probably another big reason you can't see them.