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Doug Whitney inherited the same gene mutation that gave Alzheimer’s disease to generations of relatives by the average age of 50. Yet at 73, his mind is sharp. To scientists he offers a chance to learn how the body may resist Alzheimer’s.

Scientists who tracked humpback whales in Australia noticed that fewer whales wailed to find mates as their population grew.

As Latinos age in the Rio Grande Valley, the border region is experiencing a surge of dementia-related disease – pushing scientists to find out why.

From South Dakota and Oklahoma to Alaska and Alberta, Indigenous groups in the U.S. and Canada are leading efforts to restore bison across North America.

Our Medieval ancestors left us with a biological legacy: Genes that may have helped them survive the Black Death make us more susceptible to certain diseases today.

A new study finds that some people really are “mosquito magnets” and it probably has to do with the way they smell.

The rush to build wind farms to combat climate change is colliding with preservation of one of the U.S. West’s most spectacular predators — the golden eagle — as the species teeters on the edge of decline.

Long-term studies in Los Angeles and Mumbai, India, have examined how big cats prowl through their urban jungles, and how people can best live alongside them — lessons that may be applicable to more places in coming decades.

Scientists have discovered the world’s largest plant off the Australia coast — a seagrass meadow that has grown by repeatedly cloning itself.

The nonprofit Dian Fossey Gorilla Fund announced that more land in eastern Democratic Republic of Congo where Grauer’s gorillas live will fall under a community-protection initiative.

As few as three major criminal groups are responsible for smuggling the vast majority of elephant ivory tusks out of Africa, according to a new study.

Scientists are using human stem cells to create a structure that mimics a pre-embryo and can serve as a research alternative to a real one.