Bugs, Mollusks & Other Invertebrates, TOR-ZOR

Yet, in addition to being critically important—because they naturally recycle decaying matter—in maintaining balance within the food chain, bugs can also be fascinating creatures, whether in regard to the water strider's ability to run across the surface of water or the assassin bugs' varied and creative means of catching and killing their prey. Mollusks, another group of invertebrates, get less of a bad rap. Their ranks include nearly 100,000 described species of soft-bodied animals that are usually wholly or partly enclosed in a calcium carbonate shell; examples include snails, clams, oysters, squids, and octopuses.
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Bugs, Mollusks & Other Invertebrates Encyclopedia Articles By Title

top shell
top shell, any marine snail of the family Trochidae (subclass Prosobranchia, class Gastropoda), characterized by......
Tornoceras
Tornoceras, extinct genus of cephalopods, forms related to the modern pearly nautilus. Tornoceras is a form that......
tortoise beetle
tortoise beetle, (subfamily Cassidinae), any member of more than 3,000 beetle species that resemble a turtle because......
trapdoor spider
trapdoor spider, any of numerous species of large bodied, burrowing spiders found across several taxonomic families.......
treehopper
treehopper, (family Membracidae), any of approximately 3,200 species of insects (order Homoptera) that are easily......
Trepostomata
Trepostomata, extinct order of bryozoans (moss animals) found as fossils in marine rocks of Ordovician to Triassic......
Trichinella spiralis
Trichinella spiralis, parasitic worm of the phylum Nematoda that causes trichinosis, a serious disease in humans......
Trigonia
Trigonia, genus of mollusks that first appeared during the Jurassic period, which began about 208 million years......
trilobite
trilobite, any member of a group of extinct fossil arthropods easily recognized by their distinctive three-lobed,......
triton shell
triton shell, any of several marine snails constituting the family Cymatiidae (subclass Prosobranchia of the class......
Trochonema
Trochonema, genus of extinct gastropods (snails) found as fossils in rocks dating from the Ordovician Period to......
trochophore
trochophore, small, translucent, free-swimming larva characteristic of marine annelids and most groups of mollusks.......
Tropidoleptus
Tropidoleptus, genus of extinct brachiopods (lamp shells) found as fossils only in marine rocks of the Devonian......
Tropites
Tropites, genus of extinct cephalopods (animals similar to the modern squid and octopus but with an external shell)......
trumpet
trumpet, in zoology, any of certain snail species, including members of the conch (q.v.) and triton groups (see......
tube anemone
tube anemone, (genus Cerianthus), any of a group of invertebrate marine animals of the class Anthozoa (phylum Cnidaria)......
tube worm
tube worm, any of a number of tube-dwelling marine worms belonging to the annelid class Polychaeta (see polychaete;......
tumbling flower beetle
tumbling flower beetle, (family Mordellidae), any of about 1,500 species of beetles (insect order Coleoptera) named......
tunicate
tunicate, any member of the subphylum Tunicata (Urochordata) of the phylum Chordata. Small marine animals, they......
turban shell
turban shell, any marine snail of the family Turbinidae (subclass Prosobranchia of the class Gastropoda) that has......
turret spider
turret spider, (Atypoides riversi), species of small burrowing spider endemic to California, one of the best-known......
turritellid
turritellid, (genus Turritella), any of several species of gastropods (snails) abundantly represented in fossil......
tusk shell
tusk shell, any of several marine mollusks of the class Scaphopoda. There are four genera of tusk shells (Dentalium......
tussock moth
tussock moth, (family Lymantriidae), any of a group of moths (order Lepidoptera), the common name for which is......
Uninvited Guests: The 7 Worst Parasitic Worms
What’s slimy and spineless and looking to parasitize you? (They’re not running for office, if that narrows it down.)......
unique-headed bug
unique-headed bug, (family Enicocephalidae), any of about 130 species of bugs (order Heteroptera) that have an......
urchin
urchin, any of several marine invertebrates of the class Echinoidea (phylum Echinodermata), including the cake......
velvet ant
velvet ant, (family Mutillidae), any of a group of about 3,000 species of wasps that are named for their fuzzy,......
velvet crab
velvet crab, any of certain species in the swimming crab (q.v.)...
velvet water bug
velvet water bug, (family Hebridae), any of approximately 120 species of insects in the true bug order, Heteroptera,......
velvet worm
velvet worm, (phylum Onychophora), any of about 70 wormlike species of ancient, terrestrial invertebrates with......
velvety shore bug
velvety shore bug, any insect of the family Ochteridae (order Heteroptera), which numbers about 25 species. These......
Venericardia
Venericardia, genus of pelecypods (clams) abundant during the Eocene Epoch (the Eocene Epoch began 57.8 million......
Venus comb
Venus comb, marine snail, a species of murex...
Venus’s flower basket
Venus’s flower basket, any of several sponges of the genus Euplectella, especially E. aspergillum (class Hexactinellida,......
Venus’s girdle
Venus’s girdle, (Cestum veneris) ribbon-shaped comb jelly of the order Cestida (phylum Ctenophora) found in the......
vinegarroon
vinegarroon, species of whip scorpion...
volute
volute, any marine snail of the family Volutidae (subclass Prosobranchia of the class Gastropoda). Most species......
walking stick
walking stick, (order Phasmatodea, or Phasmida), any of about 3,000 species of slow-moving insects that are green......
wandering spider
wandering spider, (family Ctenidae), family of more than 600 species and nearly 50 genera of large, nocturnal spiders......
wasp
wasp, any member of a large group of insects in the order Hymenoptera, suborder Apocrita, some of which are stinging.......
water beetle
water beetle, any of several thousand species of aquatic beetles (order Coleoptera), including members of the families......
water boatman
water boatman, (family Corixidae), any of more than 300 species of insects in the true bug order, Heteroptera,......
water flea
water flea, any member of the crustacean order Anomopoda (class Branchiopoda), a large group containing about 450......
water scavenger beetle
water scavenger beetle, any of the approximately 3,200 species of the predominately aquatic insect superfamily......
water scorpion
water scorpion, any of the approximately 150 species of aquatic invertebrates of the family Nepidae (order Hemiptera).......
water spider
water spider, (Argyroneta aquatica), species of aquatic spider that is the only spider known to spend nearly its......
water strider
water strider, any insect of the family Gerridae (order Heteroptera), which numbers about 350 species. Water striders,......
water treader
water treader, any insect of the approximately 30 species of the family Mesoveliidae (order Heteroptera). These......
weaver ant
weaver ant, (genus Oecophylla), genus of two species of arboreal ants easily recognized by their intricate nests......
webspinner
webspinner, (order Embioptera), any of about 170 species of insects that are delicate, are yellow or brown in colour,......
weevil
weevil, (family Curculionidae), true weevil of the insect order Coleoptera (beetles and weevils). Curculionidae......
wentletrap
wentletrap, any marine snail of the family Epitoniidae (subclass Prosobranchia of the class Gastropoda), in which......
western honeybee
western honeybee, (Apis mellifera), economically important species of honeybee valued for its pollination services......
whale louse
whale louse, (family Cyamidae), any of a small group of highly specialized peracaridan crustaceans (order Amphipoda)......
What Do Ants Eat?
There are approximately 10,000 species of ants on Earth, with a wide range of diets and behaviors among them. Many......
What Would Happen If All the Bees Died?
There are about 20,000 species of bees in the world, and they are probably the most important insect pollinators.......
What’s the Difference Between a Bee and a Wasp?
Ask a summertime picnicker what their biggest annoyance is, and the answer will likely be “bees.” Landing on uncovered......
What’s the Difference Between a Grasshopper and a Cricket?
Grasshoppers and crickets can look pretty similar at first glance, especially given their enormous hind legs, which......
What’s the Difference Between Hornets and Wasps?
In short: hornets are wasps, but not all wasps are hornets. Wasps are a diverse group of insects with over 100,000......
What’s the difference between moths and butterflies?
Most people are generally familiar with moths and butterflies. You might recognize a beautiful butterfly in a garden......
whelk
whelk, any marine snail of the family Buccinidae (subclass Prosobranchia of the class Gastropoda), or a snail having......
Where Do Honeybees Go in the Winter?
Have you ever seen a honeybee in the winter? Most people in temperate climates probably have not. Without blankets,......
whip scorpion
whip scorpion, (order Uropygi, sometimes Thelyphonida), any of approximately 105 species of the arthropod class......
whipworm
whipworm, any of certain worms of the genus Trichuris, phylum Nematoda, especially T. trichiura, that are parasitic......
whirligig beetle
whirligig beetle, (family Gyrinidae), any of about 700 species of beetles (insect order Coleoptera) that are widespread......
white butterfly
white butterfly, (subfamily Pierinae), any of a group of butterflies in the family Pieridae (order Lepidoptera)......
whitefly
whitefly, any sap-sucking member of the insect family Aleyrodidae (order Homoptera). The nymphs, resembling scale......
Who’s Who at the Moth Ball
Moths do not get the adoration of their butterfly counterparts, but their beauty is no less dazzling. Many people......
Why Are Bees Important?
Bees are crucial to our world for several reasons, primarily due to their role as pollinators. The approximately......
Why are cicadas so noisy?
Ah, summer. In many parts of the world, summer is the time of year when the cicadas are buzzing so loudly that......
Why Do Bees Buzz?
Most of what we hear as buzzing from bees is due to the rapid beating of their tiny wings. Some bees beat their......
Why Do Crickets Chirp At Night?
Male crickets chirp primarily to attract mates and establish territory. Their musical chirping sounds are produced......
Why Do Some Cicadas Appear Only Every 17 Years?
You already know why cicadas are so unbelievably noisy. But why do some of them appear aboveground only every 17......
window-winged moth
window-winged moth, (family Thyrididae), any of a group of tropical moths (order Lepidoptera) that are generally......
wireworm
wireworm, any of certain millipede (q.v.)...
wolf spider
wolf spider, (family Lycosidae), large family of more than 2,300 species and 135 genera of spiders named for their......
wood louse
wood louse, either of two related terrestrial crustaceans, the pill bug (q.v.) and the sow bug...
wood wasp
wood wasp, primitive insect belonging to any of three families in the suborder Symphyta (order Hymenoptera): Xiphydriidae,......
woolly bear
woolly bear, Caterpillar of a tiger moth. The larva of the Isabella tiger moth (Isia isabella), known as the banded......
worm
worm, any of various unrelated invertebrate animals that typically have soft, slender, elongated bodies. Worms......
worm shell
worm shell, any marine snail of the family Vermetidae (subclass Prosobranchia, class Gastropoda). The shell of......
Worthenia
Worthenia, genus of extinct gastropods (snails) preserved as common fossils in rocks of Devonian to Triassic age......
yucca moth
yucca moth, (genus Tegeticula), any of four species of insects of the Prodoxidae family of moths (order Lepidoptera).......
zebra mussel
zebra mussel, a species of tiny mussels (genus Dreissena) that are prominent freshwater pests. They proliferate......
zebra swallowtail butterfly
zebra swallowtail butterfly, (Eurytides marcellus), species of butterfly in the family Papilionidae (order Lepidoptera)......
zoanthid
zoanthid, any member of the order Zoanthidea, a group of about 300 species of marine animals of the class Anthozoa......
zorapteran
zorapteran, (order Zoraptera), any of a small group of about 30 species of insects found on every continent except......

Bugs, Mollusks & Other Invertebrates Encyclopedia Articles By Title