Hatchlings mostly feed on invertebrates such as insects, insect larvae, snails, spiders, and worms. They mainly eat insects such as butterfly larvae, also spiders and snails. Similar to spiders and scorpions, centipedes are predominantly carnivorous. Mites are distantly related to spiders and scorpions. Eggs are common among invertebrates, including insects, spiders, mollusks, and crustaceans. Other prey taken includes centipedes, spiders, earthworms. They eat fruits, nuts, insects, flowers, bird eggs, spiders, and small mammals. It occurs in many mammals, birds, reptiles, amphibia, fish, crustaceans, spiders, and insects. It consumes a variety of arthropod species, including insects and spiders. Spider silk is a protein fibre spun by spiders. Those who study spiders and other arachnids are arachnologists. Zebra spiders tend to hunt smaller spiders and other arthropods. This misdirects predators such as birds and jumping spiders (Salticidae). They are terrestrial, opportunistic burrowing spiders. There are creatures such as echinoderms, basket star, scotoplanes and sea spiders.