 In natural science, the Museum's holdings in insect and type specimens are internationally significant, with the spider collections including specimens from the wider Pacific area as well as a representative collection of arachnids from around the world.Marine invertebrate specimens number in the 40,000s, while 30,000 bird specimens (including nests and eggs) are held.The moa collection is among the world's best, with two out of the three complete moa eggs in the world held, the Ettrick Egg and the First Earnscleugh Egg.