Explore the incredible defense system of the human body, from the different jobs and components of the immune system to its response to infections and how it keeps you safe.

Watch as a penguin waddles and spins to its own beat in this adorable display of avian rhythm.

A scene from the 1990 comedy film 'Kindergarten Cop' where Arnold Schwarzenegger's character punches a pig.

Learn about the guitarra, a stringed musical instrument originating from Spain, its history, types, and playing techniques.

Witness a breathtaking rainbow-colored aurora in space, captured by NASA's cameras, showcasing the vibrant colors of charged particles interacting with the Earth's magnetic field.

Watch the iconic Bollywood song Tumhare Nazar Ke Deewane Hai, a soulful melody that showcases the beauty of love and longing.

了解中国唐代伟大诗人杜甫的故事，他如何从贫穷学士成为官员和诗歌奇迹的创造者，及其对生命和人民的热爱和关怀。