Ornithorhynchus Anatinus
- Has a few pictures, description, and classification information.
- http://animaldiversity.ummz.umich.edu/site/accounts/information/Ornithorhynchus_anatinus.html

Duck-Billed Platypus
- Contains a sketch and a brief description of the animal.
- http://www.nature.ca/notebooks/English/platypus.htm

Duckbill Platypus
- Information about its scientific names, common names, description, photo, behavior, range, habitats and life cycle.
- http://www.blueplanetbiomes.org/duckbill_platypus.htm

Wikipedia: Platypus
- Encyclopedia article that talks about the reproduction, ecology, and conservation of this animal.
- http://en.wikipedia.org/wiki/Platypus

The Complete Platypus
- Contains facts, pictures, drawings, humour, poems, and quizes on this animal.
- http://www.platypus.org.uk/

Platypus
- Contains pictures, how it breeds, where it can be seen, and threats to survival.
- http://www.epa.qld.gov.au/nature_conservation/wildlife/native_animals/platypus/

Wildlife of Tasmania
- Provides a fact sheet that gives basic information about this animal.
- http://www.parks.tas.gov.au/wildlife/mammals/platypus.html

Australian Platypus Conservancy
- Information about this animal, research, conservation and protection.
- http://www.platypus.asn.au/

ThinkQuest : Interactive Platypus World
- Where they live, what they eat, and threats to their existence. Includes links, a quiz, and a game. In French and English.
- http://library.thinkquest.org/11420/