Nanomaterials describe, in principle, materials of which a single unit is sized (in at least one dimension) between 1 to 1000 nanometres (10−9 meter) but usually is 1 to 100 nm (the usual definition of nanoscale).
Giant penguins bigger than most humans roamed the Earth millions of years ago. Analysis of 37-million-year-old penguin fossils by a team of researchers from the La Plata Museum in Argentina shows that the so-called ‘colossus penguin’ stood at staggering 2 metres from toe to beak tip.