Discover how seasons impact life across the globe. Learn why humans may feel down or eat more in winter, how animals like bears and tortoises hibernate to conserve energy, and why trees lose leaves to survive the cold. This guide...

Science Kids Koalas - Anatomy, Habitat and “Crikey” Fun Facts

Koalas, known for their distinctive appearance and sedentary lifestyle, are solitary animals with unique features such as fingerprints and comb-like claws. These...

This live-action video program explores the different climates found on earth. Through use of video footage, photographs, diagrams and colorful, animated graphics and labels, viewers will come to understand how weather, landforms and...

Seeking pleasure comes naturally to us humans, and we experience it in various ways, including sex. But it turns out plenty of other organisms also seek out the feeling of sexual pleasure, even outside mating purposes.

Good incentives are no substitute for good citizens.



Human beings, notes Sam Bowles, a Research Professor at the Santa Fe Institute, are complex, psychological beings given to all sorts of motivations well beyond naked...

Hank explores the science behind the first kiss -- and all the kisses that come after it -- and also sets you straight about the vernal equinox, what it is, and why this year's is special!

Organisms of all shapes and sizes synchronize their behaviors using biological clocks. Some keep pace with the daily rising and setting sun using circadian rhythms. Others use annual cycles or the changing seasons as their cue. But many...

The earth has an axial tilt of about 23.5 degrees. While this tilt is responsible for shaping our planet's climate and seasons, it also played a crucial role in shaping life on earth. What would have happened if the...

The Global Fire WEather Database (GFWED) integrates different weather factors influencing the likelihood of a vegetation fire starting and spreading. It is based on the Fire Weather Index (FWI) System, which tracks the...

Carbon dioxide plays a significant role in trapping heat in Earth's atmosphere. The gas is released from human activities like burning fossil fuels, and the concentration of carbon dioxide moves and changes through the...

Why do astronauts pee on the wheel of a bus before they take off? Do superstitious traditions really help astronauts about to fire into space? Kevin Fong investigates. Day 15 of A Place Called Space, our 2015 advent