This image for day 266 of #LMB365 shows a female mouse relaxing in a ‘Nombrero’. This is just one example of the environmental enrichment provided to LMB mice. The Biological Services Group provides some form of environmental enrichment to all mice as part of their commitment to improving animal welfare. The aim of environmental enrichment is to provide opportunities to express species-specific behaviours. The Nombrero was originally designed to hold wet mashed food, however this little mouse prefers to use it as a comfy bed!