The animated graphic shows one elephant blowing balloons with its trunk while the another cute elephant tossing pieces of popcorn from a bag into its mouth. Above them, on the wall, there is a clock that is just about to strike midnight signifying New Year's Eve 2018.
A Google Doodle is a thematic motif that is used by the search engine on its homepage to mark special occasions like the one it has done it for the New Year's Eve 2018. For this, Google gets its designers or even invites designs from people to modify its logo with a reference to the subject. In the past Google has used doodles to celebrate prominent people, their achievements and more.