Animal Diversity Web Online database of animal natural history, distribution, classification, and conservation biology operated by the University of Michigan.
| ARKive Global compilation of wildlife films, photographs and audio recordings, documenting the world"s endangered species.
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Biodiversity in Focus Personal web log highlighting wildlife photography, field zoology, and species identification.
| Introducción a la zoologÃa incluye categorÃas taxonómicas y criterios de clasificación.[cite: 1]
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