are simply "animals without backbones". Our definition of invertebrates
includes all hetertrophic, spine-free organisms with a eukaryotic
cell structure. Invertebrates compose over 99% of animal species on Earth,
and can be singlecelled, colonial, or multicelled, microscopic or enormous,
occupying just about every niche on the planet. See Morphology to
learn more Invertebrate basics.
list of works cited in the "Canada's Aquatic Environments: Invertebrates"
links to other invertebrate sites.
Click to explore
Canadian Invertebrate species from Fresh Water or Marine environments.
an overview of the diversity of body types, locomotion, reproduction, and
body forms among the invertebrates.
to investigate some of the ways in which invertebrates affect humans, how
some invertebrates are used as bioindicators, and an introduction into exotic
species and how they impact native species.
Take a look
at our ponds, tide pools and marine environments to find out just which invertebrates
can be found in each.