Biology

VA study shows parasite from Vietnam may be killing veterans

Nov 22, 2017

Hundreds of U.S. veterans who fought in Vietnam have reason to believe they may be dying from a silent bullet _ test results show some may have been infected by a slow-killing parasite in Southeast Asia

Endangered orcas compete with seals, sea lions for salmon

Nov 20, 2017

Harbor seals, sea lions and other marine mammals have been rebounding in recent decades and they're devouring more of the chinook salmon prized by endangered Puget Sound orcas

Purdue professor receives $5M grant for grain research

Nov 19, 2017

A Purdue University professor has received a $5 million grant to help develop hybrid grain seeds that will resist parasite weeds

Experts: Idaho hatchery built to save salmon is killing them

Nov 17, 2017

Fisheries biologists in Idaho say they think they know why a relatively new $13.5 million hatchery intended to save Snake River sockeye salmon from extinction is instead killing thousands of fish before they ever get to the ocean

20 years of changing seasons on Earth packed into 2½ minutes

Nov 17, 2017

NASA has captured 20 years of seasonal changes in a striking new global map of the home planet

Officials: New species of wasp discovered by college student

Nov 16, 2017

Maine officials say a new species of wasp has been discovered in the state

US health agency to crack down on risky stem cell offerings

Nov 16, 2017

U.S. health authorities say they will crack down on doctors pushing stem cell therapies that pose the gravest risks to patients

Toxic algae: Once a nuisance, now a severe nationwide threat

Nov 16, 2017

Scientists say despite prevention efforts, harmful algae is quickly becoming a global epidemic

Toxic algae flourishes despite vast sums spent to prevent it

Nov 16, 2017

Pungent, ugly and often-toxic algae is spreading across U.S. waterways, even as the government spends vast sums of money to help farmers reduce fertilizer runoff that helps cause it

Close new Earth-size world, where year lasts under 10 days

Nov 15, 2017

Astronomers have discovered a close new world the size of Earth, where a year lasts just under 10 days.