The genre of this article is informative because it's informing you about penguins.
Flightless means without flight, kind of self explanatory.
The main idea of this article is that penguins are unique creatures to observe and learn about.
The author's purpose for this article is to tell us about penguins and how they are unique.
The author's tone is positive.
1. there are 17 species of penguins.
2. they have unique wings, not like any other birds.
3. their skin is for camouflauge against predators.
Penguins are unique from other animals because they have unique wings that no other birds have.