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Showing posts from February, 2012

Whales Give Dolphins a Lift

Many species interact in the wild, most often as predator and prey. But recent encounters between humpback whales and bottlenose dolphins reveal a playful side to interspecies interaction. In two different locations in Hawaii, scientists watched as dolphins "rode" the heads of whales: the whales lifted the dolphins up and out of the water, and then the dolphins slid back down. The two species seemed to cooperate in the activity, and neither displayed signs of aggression or distress. Whales and dolphins in Hawaiian waters often interact, but playful social activity such as this is extremely rare between species. The latest Bio Bulletin from the Museum's Science Bulletins program presents the first recorded examples of this type of behavior. Visitors to AMNH may view the video in the Hall of Biodiversity until February 9, 2012.

What's In Your Trash?

The cleaning services industry brings in more than $50 billion a year, from commercial janitorial services to residential cleaning agencies, and the industry is projected to continue growing as the baby boomer generation continues to age and older Americans seek help with housework.