说明:
On of the most incredible organisms living in the oceans of planet Earth is the Turritopsis Dohrnii, more popularly known as the immortal jellyfish. Watch the video to find out why! **REMEMBER TO SUBSCRIBE FOR MUCH MORE TO COME** Subscribe - https://www.youtube.com/c/V101Science Facebook - https://www.facebook.com/unsupportedbrowser Twitter - https://twitter.com/V101Science Instagram - https://www.facebook.com/unsupportedbrowser --------------------------------------------------------------------------------------------------- Script - It is a tiny, transparent jellyfish that was first discovered in the 1880s in the Mediterranean Sea, but can be found in many oceans around the world. But what makes this strange almost alien like creature so incredible, is that it is biological immortal, this means that the creature can be killed, but doesn't seem to die from old age. Most jellyfish species have a relatively fixed life-span, which varies by species from hours to many months, but this jellyfish is capable of reverting completely to a sexually immature stage after having reached maturity. Which is kind of like a butterfly changing back to a caterpillar, instead of dying. The immortal jellyfish begins it life as a larva, called a planula. The planula settles on the sea floor and grows into a cylindrical colony of polyps. These polyps then spawn genetically identical jellyfish, which over a matter of weeks grow into adults. When fully grown, they are still tiny, around 4.5mm across, but they seem to have an incredible skill. When they become threatened by physical injury or even starvation, the creatures can transform back into a juvenile polyp, by retracting there tentacles, shrinking there bodies and sinking to the ocean floor to start the cycle all over again. Over time new genetically identical clones of the original jellyfish are released from the polyp in to the sea and incredibly these can also transform back if threatened, meaning that the process can be repeated over and over again. However, this remarkable ability, doesn't mean that they cannot be harmed, many Turritopsis Dohrnii fall victim to the general hazards of life in the sea, including being eaten by predators or succumbing to disease. Since the discover of the immortal jellyfish, many Scientists have been fascinated by the creatures ability, which is called transdifferentiation. The natural process has inspired many researchers to hopefully find a way of using stem cells to renew damaged or dead tissue in humans. So, one day in the future, humans may live for hundreds or even thousands of years, and it may well be achieved because the research that went in to tiny blob, we know as the immortal jellyfish. Attributions - Jellyfish-High Frequency Media Caterpillar to Butterfly-Your Family Farmer Born of Baby Jellyfish- budding Polyp release Ephyra immortal youth reverting jellyfish - Dr John and Music - Floating Cities - Incompetech Kevin MacLeod (incompetech.com) Licensed under Creative Commons: By Attribution 3.0 https://creativecommons.org/licenses/by/3.0/
准备下载方式
http://unidownloader.com 网站是单独下载视频或音轨的最佳方式。如果您想避免安装程序和扩展。
UDL Helper 扩展是一个方便的按钮,嵌入YouTube、Instagram和OK.ru网站,用于快速下载内容。
UDL Client(适用于 Windows)支持900多个网站、社交网络和视频托管网站的最强大解决方案。包括源中可用的任何视频质量。
UDL Lite–从移动设备访问网站的便捷方式。借助此功能,您可以将视频直接下载到智能手机上。
最佳质量格式为全高清(1080p)、2K(1440p)、4K(2160p)和8K(4320p)。屏幕分辨率越高,视频质量也越高。然而,还有其他因素需要考虑:下载速度、可用空间和设备性能。
浏览器/电脑不应完全冻结!如果发生这种情况,请通过视频链接进行报告。有时视频无法以合适的格式直接下载,因此我们增加了将文件转换为所需格式的功能。在某些情况下,此过程可能会主动使用计算机资源。
您可以使用网站或pwa应用程序 UDL Lite 将视频下载到智能手机上。也可以使用 UDL Helper 扩展通过二维码发送下载链接。
最方便的方法是使用UDL Client 程序,该程序支持将视频转换为MP3格式。在某些情况下,MP3 也可以通过 UDL Helper 扩展下载。
此功能在 UDL Helper 扩展中可用。确保在设置中选中“显示视频快照按钮”。相机图标应出现在播放器的右下角“设置”图标的左侧。单击它时,视频中的当前帧将以 JPEG 格式保存到您的计算机中。
完全不要花钱。我们的服务对所有用户都是绝对免费的。没有PRO订阅,下载视频的数量或最大长度没有限制。