Contains list of member species, in taxonomic order.

Describes survival abilities of this species. From the Astrobiology Magazine.

Discusses basic characteristics of this species. With video.

Provides information on characteristics of this animal group. With photos.

Provides information on taxonomy, phylogeny and ecology of this species. With abstract and references.

Provides information on habitation, discovery, biology, adaptation and potentials for research about this animal group. From the Illinois Wesleyan University.

Provides information on educational materials on this animal group. By William R. Miller.

Also called water bears, this guide offers a study of this little known phylum.

Contains a guide to online references on the phylum.

Discusses the basic facts of these organisms. With links and videos.

Discusses the background, methods and results of a research done on this subject. From the Young Naturalist Awards 2001.

Provides basic information on this animal group. With German translation.

Contains brief descriptions of this animal species. With images.

Provides information on sample species in this area. From www.heraldtribune.com.

Features a taxonomic diagram of this animal group. With introduction and references.