For some reason, it is customary to think that previously unnoticed or undiscovered species hide in the Amazon rainforest or the depths of the ocean. Often, such species are right before our eyes, just hiding... Yes, indeed, such "hide-and-seek lovers" are usually very similar to their "relatives" and can only be distinguished with the help of a DNA test. Thanks to a new wealth of genetic data, science is at the crest of a new wave of biodiversity discoveries. Over the last 10 years, scientists have discovered new species of giraffe, dolphin, bird and orangutan. Now it is the turn of "three penguins".

DNA analysis and a more detailed study of gentoo penguins (Pygoscelis papua) show that it is not one species, as previously thought, but four different species living on islands near Antarctica.