Pufferfish are clumsy swimmers that could fill their elastic stomachs with huge amounts of h2o & air to blow them selves around various instances their typical measurement. The Hallucigenia is really an elongated, worm-like creature with spiney oppendages throughout its system. They went extinct all around 485 million years ago, https://mnobookmarks.com/story18526308/5-simple-techniques-for-freshwater-fish