Hatchlings mostly feed on invertebrates such as insects, insect larvae, snails, spiders, and worms. Kiwi eat small invertebrates, seeds, grubs, and many varieties of worms. Fleas are more common than parasitic worms. Cuttlefish eat small molluscs, crabs, shrimp, fish, octopus, worms, and other cuttlefish. It prefers bulbs, seeds, fruits, nuts, green plants, mushrooms, insects, worms, and bird eggs. Prey include crustaceans, bivalves, worms and copepods. Nematomorphs can be confused with nematodes, particularly mermithid worms. Even text messages can be used in attacks by worms and viruses. Clawed frogs will dig through substrate to unearth worms and other food. Juvenile squid provide part of the diet for worms and small fish. When fishing, lures (Bass worms) or live bait will work. Invertebrate paleontology deals with fossils such as molluscs, arthropods, annelid worms and echinoderms. Lymphatic filariasis is a human disease caused by parasitic worms known as filarial worms. Other invertebrates include the Nemertea or ribbon worms, and the Sipuncula. They were riddled with tubes made by burrowing teredo worms.