A larva of Cassida viridis on Common hemp-nettle. It carries on its back the shed cuticle from the last molt and some feces; this shield is supposed to protect it from predators. Michal (cedryk) has also presented this funny larva.
Those noise removing softwares don't always work out the way we'd like them to do... here is a sample of such work yet it is interesting if one fails to slow down shutter speed for a nice smooth waterfall ;-)