Large mammal species live harder, die out faster

Throughout Earth’s history, species have come and gone, being replaced by new ones that are better able to cope with life’s challenges. But some species last longer than others, while others may die out sooner or evolve ...

Why Are Pygmies Short?

The question is controversial. Traditional explanations attribute pygmies' small stature to minimizing caloric requirements and walking in dense forests. However, a new study by researchers at the University of Cambridge ...

Algae could generate hydrogen for fuel cells

For several decades, scientists have known that certain species of algae can produce hydrogen in anaerobic conditions. More recently, researchers have been trying to take advantage of this ability to produce hydrogen that ...

Plants live, die according to their size

Plants self-regulate their populations to maintain stability and optimize their lives, with the lengths of their lives directly related to their mass, a recent study has found. Further, a single scaling power for lifespan ...

Is there a homosexuality gene?

Although biologists are still far from answering this question, scattered evidence for a possible gene influencing sexual orientation has recently encouraged scientists to map out a guide to future research. Because many ...

Study finds facial expressions are inherited

Scientists have found that family members share a facial expression “signature”—a unique form of the universal facial expressions encountered worldwide. In a rare study taking into account blind subjects, Gili Peleg, ...

New motor first to be powered by living bacteria

A new motor designed by scientists from Japan offers the best of both worlds: the living and the non-living. The group built a hybrid micromachine that is powered by gliding bacteria which travels on an inorganic silicon ...

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