< Animal Phyla
![](../../I/SEM_image_of_Milnesium_tardigradum_in_active_state_-_journal.pone.0045682.g001-2.png.webp)
Scanning Electron Microscope image of Milnesium tardigradum in active state.
- Tardigrada
- Name Meaning: Slow step
- English Common Name: Water bears
- Major distinguishing characteristics: Four segmented body and head
- Approximate number of species described: 1,000+
Natural History
Taxonomy
Anatomy
The Fossil Record
Quiz
- Tardigrada Quiz
References and Further Reading
- Tardigrada at Wikipedia
- Tardigrada at Tree of Life
- Tardigrada at Encyclopedia of Life
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