Marilyn Perkins

1 week ago | livescience.com | Stephanie Pappas |Marilyn Perkins

Quick facts about climate changeHow much Earth has warmed since 1850: about 2 degrees Fahrenheit (1.1 degrees Celsius)What causes climate change: Gases trapping heat in the atmosphereThe effects of a warming planet: Increased heat waves, flooding, wildfires, hurricanes and moreClimate change is any long-term shift in average weather patterns. Climate change has occurred many times in Earth's history, and for many different reasons.

3 weeks ago | livescience.com | Marilyn Perkins |Stephanie Pappas

The domestic cat is one of the smallest members of the family Felidae — the group that includes lions, tigers, jaguars and cougars. It is also the only member of that family that has been domesticated. Cats have lived among humans for thousands of years. They probably started hanging around human grain stores, attracted by mice and other vermin, and eventually spread around the world as sailors brought them aboard ships. Today, cats still help humans control pests, as well as provide companionship.