Penguins at the Edinburgh Zoo started breeding season with more than 1,000 hand-painted pebbles, courtesy of the Edinburgh Children's Hospital Charity. (RZSS) ...
Every mating season, penguins carefully search for the perfect smooth stone. They offer it as a symbolic gift that strengthens pair bonds, helps build nests, and signals commitment in the wild.
Adorable footage shows penguins at Edinburgh Zoo sharing colourful pebbles to mark the beginning of breeding season.