The National SAFEKIDS Campaign recommends that no child under the age of 12 be left at home alone. However, consider a child's age and maturity level. For example, if a child is extremely impulsive, it might be best to wait until he or she is older than 12.
Did people and dinosaurs live at the same time? No! After the dinosaurs died out, nearly 65 million years passed before people appeared on Earth. However, small mammals (including shrew-sized primates) were alive at the time of the dinosaurs.
Dinosaurs lived from the Triassic to the Jurassic to the Cretaceous, which means that they lived in an entire era called the Mesozoic. Dinosaurs lived 230-65 million years a â¦ go. In the Mesozoic era.inosaurs existed from roughly 220 to 65 million years ago. The first Homo sapiens (modern humans) came into existence 250,000 years ago. This would mean that dinosaurs preceded humans by over 64 million years.