Scientists have discovered an enzyme in bacteria that is capable of breaking down woody plant material, and their findings could make biofuel production more efficient and sustainable.
What's in a kiss? Sheril Kirshenbaum says there's a lot more to it than just lips on lips. Read more about the importance of kissing for humans and animals.
Why are millions of girls missing from Asia? The growing scarcity of females has tilted the balance in nations where "gendercide" is practiced on a large scale.
The mind is a great statistician, say psychologists studying two types of perception. Read more about statistical summary perception and statistical learning.