As if in a dream, a rain in Rio de Janeiro鈥檚 Santa Teresa neighborhood once showered down tiny, shimmering fish. This phenomenon, witnessed by residents some years ago, is known as a rain of fish, and occurs when a tornado, during a violent storm, touches down on an ocean or lake and carries a school of fish up into and across the sky. When the winds subside, the aerially suspended animals 鈥渞ain down鈥 from the clouds. The exhibition鈥檚 title, Peixe das Nuvens means literally 鈥淔ish from the Clouds,鈥 and yet the fish it refers to does not descend from above, but springs from the ground. It is a small, vividly colored species of the family Rivulidae that lives in puddles and lays eggs that remain viable for months in dry pools. When the rainy season returns and floods these places, the embryos hatch and the little aquatic animals appear to be born from the earth itself.