Each riddle describes an animal in a few clear sentences. Learners listen, guess, and the answer appears on screen - animal vocabulary practised through listening rather than through a word list.
A riddle forces a kind of listening that a comprehension question does not: every detail matters, because any one of them might be the clue that gives the animal away. The descriptions here are short and the language is plain - where it lives, what it eats, what it looks like - so beginners can follow the whole thing and still have to think.
The vocabulary is animals and the adjectives that describe them, and it comes back several times across the video rather than once in a list. Good as a warm-up, good as a break, and it plays well with a whole class shouting at the screen.