Rossellini enthusiastically acts out various sex acts while costumed as an earthworm, a spider, a bee, and other invertebrates.
To these he opposed the two lower classes, insects and worms, as invertebrates.
Let us take the case of the invertebrates, nearly all of which, as the birds, have a wide range.
The first of the three sections into which this period of life is divided is known as the Silurian age, the age of invertebrates.
Specimens, charts, and books, showing habits of invertebrates.
Squids alone, among the invertebrates, have eyes like those of land beasts.
But the invertebrates were a vague and ill-assorted heap of animals.
These tricellular reflex organs are preponderantly developed in the great majority of the invertebrates.
Almost all animal life submitted: it is today represented by the lowest class of living creatures: the invertebrates.
The members of this group are always 366 carnivorous or parasitic, and prey upon both vertebrates and invertebrates.
invertebrate in·ver·te·brate (ĭn-vûr'tə-brĭt, -brāt')
Lacking a backbone or spinal column; not vertebrate.
Of or relating to invertebrates.
Adjective Having no backbone or spinal column.
Noun An animal that has no backbone or spinal column and therefore does not belong to the subphylum Vertebrata of the phylum Chordata. Most animals are invertebrates. Corals, insects, worms, jellyfish, starfish, and snails are invertebrates.
Animals without backbones. (Compare vertebrates.)