Earth
- Earth
Low sperm counts linked to fetal effects
Low male fertility may partly stem from chemical exposures in utero, an anatomical study suggests.
- Earth
PCBs may impair fertility
A study of women undergoing in vitro fertilization finds reduced embryo implantation among women with higher levels of one type of the banned chemicals.
- Earth
Earth/Environment
Scientists discover what causes the rumbles before a volcano erupts, plus more in this week’s news.
- Earth
Ancient fossil sheds light on early evolution of body armor
A relative of today’s crabs and insects, the 10-legged, 520-million-year-old find may be the earliest known example of its kind with protected, jointed limbs.
- Microbes
Gulf floor fouled by bacterial oil feast
Observations may explain the widespread mortality of sediment-dwelling animals.
- Earth
Earth/Environment
Research links pesticides to Parkinson’s disease, plus more in this week’s news.
- Life
Packing away the poison
A genetic adaptation in a Hudson River fish species allows it to simply store toxic pollutants in its fat.
-
- Life
Moonless twilight may cue mass spawning
Subtle color shifts on the nights just after the full moon might synchronize the release of gametes by corals and other marine creatures.
- Life
Buried microbes coax energy from rock
In experiments, microorganisms can stimulate minerals to produce hydrogen, a key fuel for growth in a thriving subterranean world.
- Earth
Earth/Environment
Licorice may be a natural alternative to antibiotics on hog farms, plus more in this week’s news.
- Earth
Extinctions breed carbon chaos
Massive die-off left ecosystems vulnerable, an analysis suggests.
