News from biology

Targeting malaria at the source: Drug-treated nets eliminate parasites in resistant mosquitoes

Readers discuss the biology of sex, plastic in the brain and more

Science news this week: 'Super-vision' contact lenses and bacteria in space

Blood test developed that could speed up diagnosis of rare diseases in babies

Giant Sloths Once Ruled Americas Before Human Arrival

Blood Test Could Spot Teen Depression Before Crisis Hits

Nanoscale biosensor lets scientists monitor molecules in real time

Heartbreaking images show birds so full of plastic they 'crunch'

Mystery of 'very odd' elasmosaur finally solved: One of North America's most famous fossils identified as new species

Scientists have figured out how extinct giant ground sloths got so big and where it all went wrong

Flowers unfold with surprising precision, despite unruly genes

'Selfish' genes called introners proven to be a major source of genetic complexity

Native Turtles Return to Yosemite After Being Overrun by Invasive Bullfrogs from the East

Brain Grooves May Hold Key to Better Reasoning Skills

Leonardo da Vinci's DNA: Researchers confirm Y chromosome shared by six living family descendants

Are groovy brains more efficient?

Our teeth evolved from fish 'body armor' over 460 million years, scientists discover

Sensation through the legs: What flies do and don't perceive when walking

Seasonal resource subsidies shape life-history variations in red-spotted masu salmon