My picks from ScienceDaily

Fossil Teeth Of Three-toed Browsing Horse Found In Panama Canal Earthworks:

Rushing to salvage fossils from the Panama Canal earthworks, Aldo Rincon, paleontology intern at the Smithsonian Tropical Research Institute, unearthed a set of fossil teeth. Bruce J. MacFadden, curator of vertebrate paleontology at the Florida Museum of Natural History, University of Florida in Gainesville, describes the fossil as Anchitherium clarencei, a three-toed browsing horse, in the May 2009 issue of the Journal of Paleontology.

Why Do We Choose Our Mates? Ask Charles Darwin, Prof Says:

Charles Darwin wrote about it 150 years ago: animals don't pick their mates by pure chance - it's a process that is deliberate and involves numerous factors. After decades of examining his work, experts agree that he pretty much scored a scientific bullseye, but a very big question is, "What have we learned since then?" asks a Texas A&M University biologist who has studied Darwin's theories.

Ancient Ice Age, Once Regarded As Brief 'Blip' Found To Have Lasted For 30 Million Years:

Geologists at the University of Leicester have shown that an ancient Ice Age, once regarded as a brief 'blip', in fact lasted for 30 million years.

Calcium: The Secret To Honeybees' Memory:

Long-term memory formation in honeybees is instigated by a calcium ion cascade. Researchers have shown that calcium acts as a switch between short- and long-term storage of learned information.

Individual Primates Display Variation In General Intelligence:

Scientists at Harvard University have shown, for the first time, that intelligence varies among individual monkeys within a species - in this case, the cotton-top tamarin.

Sands Of Gobi Desert Yield New Species Of Nut-cracking Dinosaur:

Plants or meat: That's about all that fossils ever tell paleontologists about a dinosaur's diet. But the skull characteristics of a new species of parrot-beaked dinosaur and its associated gizzard stones indicate that the animal fed on nuts and/or seeds. These characteristics present the first solid evidence of nut-eating in any dinosaur.

Same-sex Behavior Seen In Nearly All Animals, Review Finds:

Same-sex behavior is a nearly universal phenomenon in the animal kingdom, common across species, from worms to frogs to birds, concludes a new review of existing research.

Common Fish Species Has 'Human' Ability To Learn:

Although worlds apart, the way fish learn could be closer to humans' way of thinking than previously believed, suggests a new research study. A common species of fish which is found across Europe including the UK, called the nine-spined stickleback, could be the first animal shown to exhibit an important human social learning strategy. The sticklebacks can compare the behaviour of other sticklebacks with their own experience and make choices that lead to better food supplies, according to the study by St Andrews and Durham universities.

Dad's Overworked And Tired While Mom's Potentially Fired:

If dad looks exhausted this Father's Day it could be due to his job, suggests new research that found many male employees are now pressured to work up to 40 hours of overtime--often unpaid-- per week to stay competitive. Women face the same pressures, but family obligations may force them to work fewer hours on the job, putting them at risk for demotions or even firings.

Putting A Name To A Face May Be Key To Brain's Facial Expertise:

Our tendency to see people and faces as individuals may explain why we are such experts at recognizing them, new research indicates. This approach can be learned and applied to other objects as well.

Beaked, Bird-like Dinosaur Tells Story Of Finger Evolution:

Scientists have discovered a unique beaked, plant-eating dinosaur in China. The finding, they say, demonstrates that theropod, or bird-footed, dinosaurs were more ecologically diverse in the Jurassic period than previously thought, and offers important evidence about how the three-fingered hand of birds evolved from the hand of dinosaurs.

Scientists Show Bacteria Can 'Learn' And Plan Ahead:

Bacteria can anticipate a future event and prepare for it, according to new research at the Weizmann Institute of Science. In a paper that appeared June 17 in Nature, Prof. Yitzhak Pilpel, doctoral student Amir Mitchell and research associate Dr. Orna Dahan of the Institute's Molecular Genetics Department, together with Prof. Martin Kupiec and Gal Romano of Tel Aviv University, examined microorganisms living in environments that change in predictable ways.

Not One, But Two Kinds Of Males Found In Invasive Round Goby Fish:

Scientists have found the existence of two types of males of a fiercely invasive fish spreading through the Great Lakes, which may provide answers as to how they rapidly reproduce.