Zoe moved down the rows of tanks, checking on the wellbeing of her charges. She stopped to watch the reef squid ripple through the water. Surprisingly beautiful, with scintillating bands ranging in colour from black to almost transparent, and pairs of iridescent spots on their billowing mantles. All well and healthy. Next was her new mangrove display. Since many estuarine creatures were active at night, it made sense to set up a tank in the nocturnal room to showcase this vital ecosystem. She’d stocked it with mangrove seedlings, snails, sea cucumbers and an assortment of mud, hermit and fiddler crabs. Archie was on a quest to find her some mudskippers. The lightning-fast little fish were equally at home on land as in water, making them particularly difficult to catch. Slogging around on f
