EnvironmentSome fish fins are as sensitive to touch as human fingertips The round goby fish, which lives on the bottom of lakes and seas, has fins that are as sensitive to tactile information as the fingertips of humans and other primates News
HumansJust thinking about bright objects changes the size of your pupils Our pupils change size in response to light levels in our environment, but it seems that just thinking about something bright or dark can have the same effect News