Our efforts are directed against species of African origin because these include several notorious pests (such as medfly, Ceratitis capitata), as well as some of the most poorly known ones (species of Dacus feeding on cucurbits).

Thus, fish are moister and cooler; land animals are warmer; hot-natured trees thrive in warmer climates, and cold-natured plants in cold.

Christina Rossetti takes up the theme: In the bleak midwinter Frosty wind made moan, Earth stood hard as iron, Water like a stone, Snow had fallen, snow on snow, Snow on snow, In the bleak midwinter Long ago

The teiids we know today are a New World family, ecological counterparts of Old World lacertids. Historically, teiids had a wider distribution, at least in the Northern Hemisphere.