Deer Mouse Eating Lupine Seeds (IMAGE) Washington University in St. Louis Caption The native deer mouse (Peromyscus maniculatus) consumes large volumes of lupine and beach pea seeds in California coastal sand dunes. Dear mice voyage onto the open dunes only on moonless nights. This rare photo of a baby mouse eating a lupine seed in broad daylight was taken by Washington University graduate student Steve Kroiss. Unfortunately, a mouse that risks foraging during the day is probably starving. Credit Steve Kroiss/WUSTL Usage Restrictions Please credit as shown License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.