Curiosity deserves
clear sources.
DodoHistory is a growing educational collection about animals, places, and deep time. We distinguish reference information, interpretations, and illustrations so you can keep exploring with confidence.
Free to explore. Clear about the evidence.
All discoveries, tools and learning resources are free. Our planned funding model is advertising, with no paid access or subscription. Advertising is not active. Our AdSense application is under review.
Source-linked does not mean independently verified by a scientist. We identify what has been checked, what is an interpretation, and what remains uncertain. We do not display a scientific certification or Google approval badge that we have not earned.
What has been reviewed?
Six immersive animal exhibits link to museum, research, and conservation sources. The size explorer starts with five measurements checked against museum and zoo references. The broader 160-entry image directory uses Wikipedia reference overviews and Wikimedia Commons media metadata. Those entries are a starting collection, rather than 160 independently reviewed scientific essays. Some entries describe genera or broader groups instead of individual species.
The original exhibit references were checked on 9 October 2026. Selected profiles now include original question-and-answer field notes with their own source-check dates and institutional references. Those dates apply to the notes on that page, rather than the whole collection. New research can change interpretations; follow the linked evidence directly.
Who is responsible for the field notes?
DodoHistory publishes the educational explanations and learning activities on this site. We do not claim that every page has been independently reviewed by a scientist. A source-check date records our editorial check of the linked references; it is not a credential or an endorsement by those institutions.
For a correction, send the page address, the statement in question and a supporting reference to hello@dodohistory.com. We review the evidence before changing an explanation or its source-check date.
Explore the source-linked discovery guides →What does a map point mean?
The animal atlas marks representative native regions, historical habitats, and fossil-bearing regions. A point is not a live sighting, exact excavation location, or complete range map. The fossil explorer is a small snapshot from the Paleobiology Database: modern coordinates are rounded to 0.1°, collection age ranges are retained, and original discovery references are displayed. It does not reconstruct ancient continental positions.
Genus searches can include historical identifications and revised classifications; Mammuthus includes mammoths beyond the woolly mammoth. One older Canadian Velociraptor identification is excluded from this initial curated display. Some fossil collections recur under multiple genus searches. Reworked material and broad intervals need careful interpretation.
How are pictures and sounds credited?
Reference photographs, museum specimens, and reconstruction images link to their Commons file pages, authors, and licenses. Images may be resized and cropped in the interface; licenses continue to apply to the respective media. Directory overviews are credited to Wikipedia contributors under the linked CC BY-SA license.
Six specimen illustrations were created with AI. They are interpretive 2D artwork shown with layers, lighting, and motion; they are not scanned or rigged 3D animal models. Extinct coloration and appearance are not known exactly. The habitat gallery’s terrain and flying silhouettes are stylized scenery.
The listening room embeds two living-bird field recordings unchanged by DodoHistory, with recording credits and separate audio licenses. The robin file is an existing cleaned version supplied by its Commons uploader. The collection does not claim to know extinct animals’ voices.
How should the tools be used?
Visual clues narrow a curated list; they do not identify a photographed animal with certainty. Size bars compare stated measurements on a shared scale, with length separate from height. Each record explains whether it is an individual specimen, reference estimate, or upper end of a range. A chosen human reference is a ruler aid, not a demographic average.
Geography and Earth imagery
The geography collection has 196 entries, including the 193 UN member states, the Holy See, Palestine, and Taiwan. Recognition and regional grouping vary. Country data comes from mledoze/countries (ODbL) and the REST Countries archive (MPL 2.0). Population figures are reference snapshots.
The 2D boundaries come from Natural Earth, public domain. Earth texture uses the Three.js planet sample asset. Country-photo credits remain in the atlas’s Sources & photo credits panel.
Questions or corrections?
Contact DodoHistory at hello@dodohistory.com for general questions, source corrections, image-credit concerns or feedback. Include the page address and the information you would like us to review.
For privacy questions, read our privacy information or contact the same address.