Is there still dinosaurs living today?

Depends what you mean. Crocodiles have not evolved much from the ages of the dinosaur but their size has changed slightly. Turtles also share the fact that they were bigger back in the dinosaur times. Animals from the dinosaur ages can't still be alive because that mean that they would be about 65 million years old. So the answer is kind of, because although they are a lot like animals from back in the Jurassic and Triassic ages, they are not the same as those animals.