- What is in a Scientific Name?: Explanation of taxonomic names
- IUCN List of Threatened Species of Animals & Plants
- Monterey Bay Aquarium: Official Website
- Pacific Whale Foundation’s Blog
- Hawaiian Islands Humpback Whale National Marine Sanctuary website
- NOAA Fisheries: Humpback Whales
- Whale Vocalization: Wikipedia page
- Plants of Hawaii photo database: Searchable photographic database
- The Roadside Geology of Hawaii (book)
- Hawaiian Marine Shell Reference Collection: Photo gallery of common shells found in Hawaii
The Private Naturalist 
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