Biology news

Why Life Originated (And Why it Continues)

(PhysOrg.com) -- Today, scientists understand pretty well how life evolves, by mechanisms based on Darwin’s theory of natural selection for survival of the fittest. However, Darwin’s 1859 classic, On the ...

Dec 09, 2008 4.2 / 5 (173) 106 feature

Maxwell's demons may drive some biological systems

(PhysOrg.com) -- According to the second law of thermodynamics, entropy always increases. For example, two bodies of different temperatures, when brought into contact, will eventually mix together to result in a uniform temperature. ...

Sep 10, 2008 4.5 / 5 (42) 0 feature

Exotic Chameleon Spends Most of its Life as an Egg

(PhysOrg.com) -- Scientists have discovered a chameleon species that spends a good two-thirds of its life inside an egg: Furcifer labordi lives about 8-9 months as an embryo, and has a post-hatching lifesp ...

Jul 11, 2008 4.7 / 5 (30) 3 feature

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 ...

May 07, 2008 4.5 / 5 (28) 3 feature

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 ...

Dec 21, 2007 4.3 / 5 (70) 11 feature

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 ...

Nov 13, 2007 4.6 / 5 (122) 0 feature

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 ...

Oct 22, 2007 4.3 / 5 (45) 2 feature

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 ...

Dec 07, 2006 3.5 / 5 (88) 0 feature

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, ...

Nov 07, 2006 4.3 / 5 (40) 0 feature