Our ancestors noticed that when amber was rubbed against fur it attracted small objects...why is this? Created by Brit Cruise.
(stream trickling) (water splashing) (stream trickling) (cat purring)
If you're seeing this message, it means we're having trouble loading external resources on our website.
If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked.