New insight into leaf shape diversity

Many of us probably remember the punnett squares by which we were introduced to the idea of genetic inheritance in school: a dominant allele in each of my brown-eyed parents hides a recessive allele that explains my blue ...

Physically dynamic surfaces may herald another tablet revolution

Apple's iPad arrived five years ago. It is a device that changed the way we think about computing, marking a seismic shift from keyboard and mouse to direct manipulation with our fingers. The iPad wasn't the first tablet ...

Shape-shifting alloys hold promise

Imagine untwisting a finger-size spring, then holding the flame from a lighter underneath the unraveled section. Like magic, it twirls itself into a spring again because the metal alloy remembered its original shape.

Researchers find active transporters are universally leaky

Professor of Biochemistry Emad Tajkhorshid and colleagues have discovered that membrane transporters help not just sugars and other specific substrates cross from one side of a cellular membrane to the other—water also ...

Candidate most massive binary star identified

Astronomers have observed a binary star that potentially weighed 300 to 400 solar masses at birth. The present day total mass of the two stars is between 200 and 300 times that of the Sun, depending on its evolutionary stage, ...

Stressed-out tadpoles grow larger tails to escape predators

When people or animals are thrust into threatening situations such as combat or attack by a predator, stress hormones are released to help prepare the organism to defend itself or to rapidly escape from danger—the so-called ...

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