My picks from ScienceDaily

Mighty Microbes: Bacteria Filaments Can Bundle Together And Move Objects 100,000 Times Bacterium's Body Weight:

Researchers from The University of Arizona and Columbia University have discovered that tiny filaments on bacteria can bundle together and pull with forces far stronger than experts had previously thought possible.

Work Hassles Hamper Sleep, Study Shows:

Common hassles at work are more likely than long hours, night shifts or job insecurity to follow workers home and interfere with their sleep. That's the conclusion of a University of Michigan study presented April 17 at the annual meeting of the Population Association of America.

Are Humans Hardwired For Fairness?:

Is fairness simply a ruse, something we adopt only when we secretly see an advantage in it for ourselves? Many psychologists have in recent years moved away from this purely utilitarian view, dismissing it as too simplistic. Recent advances in both cognitive science and neuroscience now allow psychologists to approach this question in some different ways, and they are getting some intriguing results.

Older People Are Nation's Happiest: Baby Boomers Less Happy Than Other Generational Groups:

Americans grow happier as they grow older, according to a University of Chicago study that is one of the most thorough examinations of happiness ever done in America.

Early Elephant 'Was Amphibious':

The scientists were investigating the lifestyle of two early elephants (proboscideans) Moeritherium and Barytherium that lived in the Eocene period, over 37 million years ago. By analysing isotopes in tooth enamel from Moeritherium they were able to deduce that it was very likely a semi-aquatic mammal, spending its days in water eating freshwater plants.'

More like this

Although not as aquatically-adapted as their distant ancestors, Indian elephants are certainly capable swimmers.A number of my fellow ScienceBloggers have covered the "Aquatic Elephant Hypothesis" lately (see here, here, and here), and even though I'm a little late to the party I thought that I'd…
A comparison of carbon/oxygen isotope ratios from the tooth enamel of two early proboscideans, Moeritherium and Barytherium to other animals of the same era (circa 37 mya) revealed to researchers the possibility of a ancient, semi-aquatic animal, linking the speculated split of dugong and elephant…
That elephants have an aquatic ancestry has been suspected for some time now. Moreover, the idea of elephant aquatic origins and elephant origins in general is part of a growing realization that many of the world's aquatic mammals originated in a couple of regions of Africa that were for a very…
The restored lower jaw of Arcanotherium (formerly Numidotherium savagei). (From Delmer, 2009) Unlike the folks at this past weekend's ScienceOnline 2010 meeting, fossils don't come with nametags. The identification of preserved bits of ancient life relies upon careful comparison with what is…