There isn't much scientific proof to back up this widely-held misconception regarding penguins. There is no concrete proof that penguins "propose" to their partners using pebbles or any other method, despite the fact that they are recognized for their close pair bonds and occasionally engage in mate-guarding behaviors. Some penguin species, including the Adelie and African penguins, have been seen to present rocks and other objects to their partners. However, not all penguin species exhibit this behavior, and it is still unclear whether or not these objects contribute to the establishment or maintenance of their pair bonds. Although penguins are generally intriguing animals with sophisticated social behaviors, more study is necessary to completely comprehend the inner workings of their relationships.