Baby Norway rats get milk from their mothers until weaning at 3-4 weeks. As with other mammals, instinctive behaviors help them nurse effectively. This baby is demonstrating nipple seeking, rooting and kneading which is intended to stimulate milk flow. Sh

Baby Norway rats get milk from their mothers until weaning at 3-4 weeks. As with other mammals, instinctive behaviors help them nurse effectively. This baby is demonstrating nipple seeking, rooting and kneading which is intended to stimulate milk flow. Sh