|Dinosaurs are all those animals that arose from a common
ancestor that had developed a hole in the bone of its hip socket
This hole could exist because of the upright posture of the the animals
which transmitted forces up the leg to the top rather than the side of
Below is an example of a dinosaur, one that has this
hole in its
hip. This is Deinonychus antirrhopus, a close relative of Velociraptor
- the "raptor" of the movies Jurassic Park and Lost World.
Dinosaurs are still alive!
One of the most
exciting aspects of Science is its ability to
alter our perceptions of the world around us. To me (Paul E. Olsen) a
in New York City really does look different knowing that those are
gray dinosaurs walking and flying all around!