Japanese scientists at the University of Tokyo have genetically modified a mouse’s brain and removed their smell of fear enabling the mouse to happily interact with a cat! The resulting “delta-D” mutant mice were also able to discriminate other smells but “was not afraid of cat odours, and approached the cats without a sign of fear,” said Dr Ko Kobayakawa. This shows that this smell of fear response is not learned but hard wired into the mouse brain.
Read more at BBC and here and learn more about the research work of Dr Ko Kobayakawa here>
