Q & A
Okay, first of all, one subgroup of dinosaurs is still roaming the Earth today: the birds.
Therapsida is a group of synapsids that includes mammals and their ancestors.
Evolutionary biology is the study of the origin, development, and changes (evolution) in species over time. Other scientists that contribute to evolutionary biology are geologists and geneticists.
Basically, scientists have learned that rocks are stacked in layers containing fossils with the oldest fossils at the deepest layers, and the youngest, or most recent fossils, near the top.
T. rex may have had lips. Yes, you read that right. Lips.
Spinosaurus was the largest theropod to ever walk on the earth, discovered in 1912 for the first time, it has been nominated to be larger...
Fortunately there are already plenty of museums worldwide that (safely) bring humans face to face with dinosaurs — and not always just their skeletons.
It’s easy to forget that dinosaurs were real animals. They were born (or hatched), grew from juveniles into adults, wandered around the landscape, ate, slept, pooped, and had sex (just like most of us).
A more subtle difference is the shape of the lacrimal bone, which made up the front part of the eye socket and was also part of the dinosaur’s skull ornamentation.