Nature

How do we know that dinosaurs, animals that became extinct before recorded history, ever existed in the first place? The answer is fossils and scientists. Fossils are what scientists study to learn about the history of the earth. Fossils are ancient dinosaur bones that were covered up by the earth over time. Gradually, the bone material broke down and was …

Even pets can be bought online these days. But is it a good idea? It can be, if you follow some basic guidelines. First, identify which breeds are best suited to you and your circumstances. The American Kennel Club website offers a questionnaire to help you define your needs and then provides you with a list of which breeds would …