These spiders live in urban and rural areas. They sometimes live in homes, but more often live outside. Their brown, black, white, grey, and tan coloration helps them blend into the bark of trees.

Black widows are notorious spiders identified by the colored, hourglass-shaped mark on their abdomens. Several species answer to the name, and they are found in temperate regions around the world.

Sauntering through your yard, gazing at your prized roses, breathing in their sweet scents mixed in with summer's balminess ...

In the past couple decades, researchers have noticed black widow spiders (adult female shown at right) commonly being displaced by the brown widow (adult female at left), a fellow species in the ...