-Dinosaurs have thin/hollow bones, like birds.
-Many dinosaurs take care of their young.
-Dinosaurs can walk upright (some, at least).
-The hip structure of dinosaurs is dissimilar to that of a lizard.
They found a dinner set by a T-rex's claw and now believe they are mammals as intelligent as dolphins no there are birds they evoled feathers
no, they are considered to be an actual type of reptile.
I believe it does. Scientists think that an asteroid wiped out the dinosaurs.
becuase of simalarities
Because they're using a definition of "dinosaur" that allows them to think that.
The same other dinosaurs of it's time are killed, by a meteor (or that's what scientists think).
this is not possible to answer, scientists may have a little idea and i think from my point of view that they had wrinkly faces
Some scientists think that a big asteroid hit the Earth, a volcano erupted lots of poisonous lava on the dinosaurs, there was a big earthquake or because the weather was very cold.
Not dinosaurs as we traditionally think of them. "Classic" dinosaurs went extinict long before any people were around. However, scientists now know that one group of dinosaurs lives to this day: birds. Birds of various types have long been hunted by humans.
Some scientists believe that dinosaurs became extinct when a comet crashed into Earth. This catastrophic event led to widespread environmental changes, including extreme climate conditions that likely contributed to the mass extinction of dinosaurs and many other species.
Dinosaurs as most people think of them are completely extinct. However, birds evolved from dinosaurs, and as such, are considered to be a group of dinosaurs. Since birds are still alive today, so are some dinosaurs. No dinosaurs other than birds are alive today, though.
Spinosaurus was a land dinosaur that scientists think could swim. It lived in what is now North Africa.