Jellyfish diameter; the tentacles and mouth parts usually extend beyond this bell dimension. The smallest jellyfish are the peculiar creeping jellyfish in the genera "Staurocladia" and "Eleutheria", which have bell disks from to a few millimeters in diameter, with short tentacles that extend out beyond this, which these jellyfish use to move across the surface of seaweed or the bottoms of rocky pools. Many of these tiny creeping jellyfish cannot be seen in the field without a hand lens or microscope; they can reproduce asexually by fission (splitting in half). Other very small jellyfish, which have bells about one millimeter, are
Superfast Jellyfish track, by Unicorn Kid, was premiered on BBC Radio 1's Zane Lowe show on 12 April 2010. On 27 April 2010, the group performed the song live on "Later... with Jools Holland." The official music video for "Superfast Jellyfish" was uploaded to YouTube by Jamie Hewlett on March 8, 2010. The video shows a man waking up at the sound of an alarm, going downstairs, and cooking a box of "Superfast Jellyfish" in his microwave. Once ready, he begins to eat one of the jellyfish, however, he is sent into a trance in which the jellyfish perform a dance around