6 Wonderful Facts about Penguins
In the past, people ate penguin eggs. They also killed adult penguins for their feathers, skin, and oil. People also used penguin droppings (guano) to fertilize the soil and help grow crops. While this seems harmless, some penguins use guano to make their nests. When the guano was gone, they had to lay their eggs on the bare ground, where they were more susceptible to predators.