Dog Roundup
When training dogs, a new study reveals that you better use treats if you want tricks.
Podcast
BODIES: Regenerating tooth enamel, why we have fingernails, why hair turns grey, and more.
Grandparent Advantage
Grandparents may have helped the human population expand.
Imposter Caterpillars
A species of caterpillar tricks ants into treating it better than its own young.
Giant Snake
A super-sized snake in prehistoric Colombia tells scientists about the future of global warming.
Apple Roundup
Researchers find compounds in apples that could help fight cancer and Alzheimer's disease.
Podcast
Caterpillars infiltrate ant nests, loneliness and your health, how planes can fly upside down, and …
Fat Feedback
Fat cells communicate with the brain to regulate how much we burn.
Aging Proteins
Research in rodents suggests that some animals' proteins are more resistant to age-related stress.
Evolution of Conscience
Hunting and gathering in pre-historic times may have led to the evolution of the conscience.