Summary:
- Deinonychus is the genus name of an extinct dinosaur that is considered to be one of the closest non-bird relatives of modern birds.
- It lived about 110 million years ago in what is now North America.
- It was a predatory carnivore with many bird-like features.
- For example, it had feathers and wings.
- It also had strong legs with clawed feet, similar to modern raptors.
- Its respiratory, circulatory, and digestive systems were similar to those of birds as well.