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Welcome to the Experimental Design Assistant, a free resource from the NC3Rs to support researchers in the planning of animal experiments - ensuring robust study design and reliable and reproducible findings.

The EDA consists of a web application and a supporting website; benefits include:
•The ability to build a stepwise visual representation of your experiment
•Feedback and advice on your experimental plan 
•Dedicated support for randomisation, blinding and sample size calculation
•Practical information to improve knowledge of experimental design
•Improved transparency of your experimental design, allowing you to share and discuss your plan with colleagues and collaborators

 Find Human tissue samples online using the UKCRC Tissue Directory.

This section of the Three Rs microsite provides useful links and information to help visitors easily find a wide range of resources.

The Macaque Website is a free, public resource for those working with, or is interested in, laboratory macaques. 

Procedures with Care Website by Newcastle University, NC3Rs and IAT, provides a series of resources to support the adoption of best practice for commonly used procedures in animal research.

The website is maintained by Norecopa. It covers all Three Rs, is in English and free of charge. 

A celebration of the 60th Anniversary of the publication of The Principles of Humane Experimental Technique by W.M.S Russell and R.L. Burch. The film of this event, which featured some of the eminent scientists and researchers in the field of alternatives to animal testing, took place on November 22, 2019 at the Johns Hopkins Bloomberg School of Public Health in Baltimore, Maryland.