A new iniative to preserve the migration paths of ungulates like deer and caribou relies on maps of where the herds go and what obstacles they face.

New research indicates that climate change's impact on water cycles threatens migratory waterbirds in Africa and the High Arctic.

North Pacific loggerhead turtles make a two-decade-long journey of thousands of miles. A newly-discovered phenomenon may explain how they do it.

Autumn warming may explain a decline in Western butterfly populations. One species, the western monarch, has declined 99.99% since the 1980s.

Researchers say DNA from stone tools from in a Mexican cave suggests humans first arrived in America about 15,000 years earlier than previously thought.

Biologists were sure that moonlight prompted naked mole rats to disperse and form new colonies. These experiments disprove that theory.

New research with skulls upends ideas about who arrived in the Caribbean when. "We're going to have to reinterpret everything we thought we knew."

Research finds that the first Caribbean islanders came straight from South America to the northern Caribbean, initially settling Cuba, Hispaniola, and Puerto Rico.

Archaeologists are illustrating parallels between the WWII era and today by finding and documenting objects left behind by modern-day refugees in Croatia.

A look at the material consequences of border walls around the world reveals their impact on global trade.