+ WHAT IS A DINOSAUR? Giganotosaurus Leg bones Hip bones Forelimbs Skulls + THE BIRD CONNECTION Similarities between Compsognathus and Archaeopteryx Efficient…
An immigrant is a person who comes to a country to take up permanent residence. The first known use of the term was in a textbook, American Geography, by Jedidah Morse published in 1789. See…
Immigration Statistics from the most recent data available from the Department of Homeland Security Related Links Notable U.S. Immigrants Immigration Facts The Green Card…
Immigrants having an eye exam at Ellis Island. Source: Library of Congress
The U.S. is a nation of immigrants. The first wave of immigrants to colonial America,…
Scientists have conflicting opinions on this subject. Some paleontologists think that all dinosaurs were “warm-blooded” in the same sense that modern birds and mammals are: that is, they had…
Some dinosaurs ate lizards, turtles, eggs, or early mammals. Some hunted other dinosaurs or scavenged dead animals. Most, however, ate plants (but not grass, which hadn't evolved yet). Rocks that…
Direct fossil evidence for dinosaur skin color is unknown. Paleontologists think that some dinosaurs likely had protective coloration, such as pale undersides to reduce shadows, irregular color…
