A new era of developmental atlases The Virtual Embryo
The Virtual Embryo
for modern biology
Explore mouse embryonic development in 3D — from fertilization to late gestation — with EMAPA-annotated histology, programmatic APIs, and AI-ready data.
1,129
Data items
28
Theiler stages
72
3D reconstructions
1,033
Annotated sections
Developmental timeline
Jump to a stage
3D
Interactive reference models
OME-NGFF–backed volumes, streamed on demand. Orbit, slice, and compare across Theiler stages.
2D
Deep-zoom histology
IIIF tiles behind every Kaufman plate, with EMAPA annotations overlaid as Web Annotations.
API
Programmatic & agent-ready
Open REST + MCP endpoints. Query the atlas from notebooks, pipelines, or LLM agents.