Dean Veall here. My turn on SoTW has come round again and this week I have chosen a specimen that belongs to the group that is a favourite of museums to hang from ceilings, in fact one of my first museum memories was as a young curly haired child wandering around Amgueddfa Cymru-National Museums Wales (AC-NMW), National Museum Cardiff, and encountering one dangling from the ceiling. There’s a hint of my choice there, museums love to suspend things from the ceiling and the top favourites tend to be whales, seals and birds, (we like to break the mould here at the GMZ and have instead chosen to suspend our seal from the balcony). My specimen this week also comes from a group of animals that date back a phenomenal 220 million years. Some individuals of the group that this week’s specimen belongs to are the longest lived animals on the planet. You should be warned this week’s blog contains some cute images of young versions of this species. This week’s specimen is……..