Misrani: What happened to the sibling?
Claire: She ate it.
Masrani: You created a monster!
Henry Wu: Monster is a relative term. To a canary, a cat is a monster. We're just used to being the cat.
Masrani: The key to a happy life is to accept you are never actually in control.
Owen: Time to take a stroll through the woods. 65,000,000 years ago.
Answer: Dinosaurs aren't cold-blooded reptiles. They are warm-blooded (or possibly somewhere between) and are more closely related to birds. Remember the first movie where Dr. Wu told Ellie that dinosaurs hold a temperature above that of the air.
Greg Dwyer
Dinosaurs and birds have different blood temperatures so I highly doubt that they're related. Lizards, like dinosaurs, are cold-blooded; birds are warm-blooded.
The most reliable and modern research shows that dinosaurs were not cold-blooded and were more similar to birds or mammals than modern-day reptiles.
LorgSkyegon
Warm-blooded means the animal's body attempts to maintain a relatively constant core temperature, and cold-blooded don't. This is because many of the body's systems work better when warm, like muscles. But all animals generate heat when expending energy, like when their muscles are operating for movement, so a "cold-blooded" animal will still normally be at a higher temperature than its surroundings unless it has been staying still for a while. Even then, heart and digestive action is still generating at least a little heat. It is the issue of being warmer, even by a small amount, that allows a thermal device to see the difference.