Meant as a test if the embedding of Youtube-videos works as described.
music noise in that video is aptly titled “Mad Cow Disease”. You may like to turn down the volume.
The tadpoles seen in that video are of the European toad Bufo bufo bufo and probably but not yet identifiable (by me) of the common water frog Pelophylax kl. esculentus (which is hybrid between the pool frog Pelophylax lessonae and the marsh frog Pelophylax ridibundus).