They are our apex predator, the deadliest hunters of human beings on the planet.
Archives For Science News
Childhood fears are common, normal
FUTURE WORRIES Although once regarded by some researchers as a relatively harmless condition, childhood anxiety raises the likelihood of encountering serious problems later in life, researchers now say. By Bruce Bower sciencenews.org
New Australian species is less than appetizing
CUT AND CLOT Two minutes after being cut open, the white flesh of an immature Solanum ossicruentum fruit turns red. After five minutes of air exposure, the bush tomato’s bloody color becomes even darker. By Sharon Schwartz sciencenews.org
A new atlas reveals where light pollution obscures the night sky
NIGHT LIGHTS More than a third of Earth’s population can no longer see the Milky Way at night, a new atlas of light pollution shows. Relatively pristine night skies, such as this one above Dinosaur National Park on the border of Colorado and Utah, are increasingly rare. By THOMAS SUMNER. sciencenews.org
Enzymes used to build protective biofilms can also destroy them
STICKY BUSINESS Pseudomonas aeruginosa (light green cells) biofilms are communities of bacteria encased in a coating primarily of sugar polymers (dark green). Enzymes that the bacteria use to build the coating can also chew it up, a new study suggests.
PAUL GUNNING/SCIENCE SOURCE
Circumhorizontal arc’ caused by ice crystals
Brian Gird, Worcester