Arsenic in Bangladesh drinking wells may be linked to crop irrigation, MIT study finds
A ruthless killer in Bangladesh's drinking water is making millions of people sick and may be causing as many as 3,000 deaths each year. That killer--naturally occurring arsenic in the water drawn from family wells--appears to have been released through a proce...HIV protein attacks body's innate protection system that could prevent virus' replication
...s the human body, a fierce battle ensues between a ruthless viral protein and our long-misunderstood innate protection system. Ultimately, the protein seizes and destroys that system, and HIV replicates. But Oregon Health & Science University researchers who discovered the mechanism by which this destruction ...Rare ant may help solve some mysteries of social evolution
...ons. "Slave-maker behavior ranges from the all-out ruthless and bloody annihilation of another ant colony to s...r of one species from another, what makes one more ruthless than another, and to see if we can get more insight into the key evolutionary differences between th...Parasitic cowbirds thrive with a less ruthless strategy than cuckoos
...land shows that cowbird chicks survive with a less ruthless strategy. A cowbird chick instead joins its nestmates in a chirping chorus that brings in more food than one noisy cowbird chick could demand from its host parents. By eating more than its share, the researchers found, the cowbird chick actually grow...