What is "invertebrates"

Usage examples of "invertebrates".

The fleshy feelers on the underside of its toothless mouth gave the ancient, sharklike fish a fearsome appearance, but its diet consisted of invertebrates and small fish foraged from the bottom.

Nonetheless, despite these radical changes in design, the basic cellular organization of the nervous system, with its neurons, synapses and ensembles of interconnecting cells, is the same for vertebrates as for invertebrates, as is much of their biochemistry.

Whether despite this revolution in design the cellular mechanisms required for learning and memory in invertebrates are similar to or radically different from those in vertebrates is an issue which is still unresolved in research terms, and one which will occupy some of the discussion of the following chapter.

Aplysia may be a special case because it is easy to study, but it would be straining credulity to believe that it organized its learning behaviour along fundamentally different principles from those of other invertebrates, or indeed vertebrates with reasonably sized nervous systems.

Watching it work, he wondered uneasily what other invertebrates might be living within the dunes, meandering sinuously beneath his vulnerable backside even as he sat there contemplating the astonishingly swift disappearance of the many-legged worm.