Dogs are known to play, swim and lap up water in lakes and ponds, but these simple joys can lead to illness and even fatal poisoning when harmful algae blooms muck up the water.

Lake Erie has become increasingly susceptible to large blooms of toxin-producing cyanobacteria since 2002, potentially complicating efforts to rein in the problem in the wake of this year's Toledo drinking water crisis, according to a new study led by University of Michigan researchers.

A Virginia Tech geobiologist with collaborators from the Chinese Academy of Sciences have found evidence in the fossil record that complex multicellularity appeared in living things about 600 million years ago – nearly 60 million years before skeletal animals appeared during a huge growth spurt of new life on Earth known as the Cambrian Explosion.

Up to half of the water on Earth is likely older than the solar system itself, University of Michigan astronomers theorize.

Gas leaks from faulty wells linked to contamination in some groundwater.

Increased water-recycling and improved irrigation techniques among six strategies identified as key to successfully reducing global water scarcity.

New questions about geology, oceanography and seafloor ecosystems are being raised because of research by a Mississippi State University geologist.

Maintaining astronaut bone and muscle health in microgravity is an ongoing concern for NASA, and now the agency is “forcing” the issue with a new investigation.

Drug-resistant bacteria annually sicken 2 million Americans and kill at least 23,000. A driving force behind this growing public health threat is the ability of bacteria to share genes that provide antibiotic resistance. 

A University of Adelaide mineralogy researcher has discovered a new mineral that is unique in structure and composition among the world's 4,000 known mineral species.

Researchers led by a Washington State University biologist have found that arid areas, among the biggest ecosystems on the planet, take up an unexpectedly large amount of carbon as levels of carbon dioxide increase in the atmosphere.

Exposing leafy vegetables grown during spaceflight to a few bright pulses of light daily could increase the amount of eye-protecting nutrients produced by the plants, according to a new study by researchers at the University of Colorado Boulder.