My picks from ScienceDaily

Some Birds Can Communicate About Behavior Of Predators:

With the aid of various alarm calls the Siberian jay bird species tells other members of its group what their main predators-¬hawks¬-are doing. The alarm calls are sufficient for Siberian jays to evince situation-specific fleeing behaviors, which enhances their chances of survival. This discovery, being published by Uppsala University researcher Michael Griesser in the journal Current Biology, shows for the first time that animals can assess and communicate about the behavior of predators.

High Degree Of Antibiotic Resistance Found In Wild Arctic Birds:

Swedish researchers report that birds captured in the hyperboreal tundra, in connection with the tundra expedition "Beringia 2005," were carriers of antibiotics-resistant bacteria. These findings indicate that resistance to antibiotics has spread into nature, which is an alarming prospect for future health care.

Down To Earth Remedies For Chimps: Eat Mud:

The deliberate ingestion of soil, or 'geophagy', has important health benefits for chimpanzees, according to Sabrina Krief and her colleagues from the Muséum National d'Histoire Naturelle in Paris, France. Far from being a dysfunctional behavior, geophagy has evolved as a practice for maintaining health amongst chimpanzees. In this particular study geophagy is shown to increase the potency of ingested plants with anti-malarial properties.

When Tsetse Flies Fall For A Host, They Keep Coming Back For More:

If you like a restaurant first time around, you're likely to go back, aren't you? Well the same goes, more or less, for tsetse flies, as researchers from CIRAD, CIRDES and the University of Neuchâtel have recently demonstrated.

Snoozing Worms Help Explain The Evolution Of Sleep:

The roundworm C. elegans, a staple of laboratory research, may be key in unlocking one of the central biological mysteries: why we sleep. Researchers at the University of Pennsylvania School of Medicine report in the January 11 advanced online edition of Nature that the round worm has a sleep-like state, joining most of the animal kingdom in displaying this physiology. This research has implications for explaining the evolution and purpose of sleep and sleep-like states in animals.