The video of Little Yellow Duck is called "Little Yellow Duck" on iPhone. This is a popular online video playback application, specially developed for iPhone devices. You can search for "Little Yellow Duck" in the App Store, and then download and install it on your iPhone. After installation, you can use this application to watch various video contents. Please note that due to copyright protection, some regions may not be able to access the video of Little Yellow Duck, and the specific situation may vary from region to region.