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.
The same advantages helped Homo sapiens outcompete another rival human, the Neanderthals, who died out about 30,000 years ago as the Ice Age limited available food supplies. Even 100,000 years ago, we've still got several human species on Earth and that's strange for us.We're the only survivors of all of those great evolutionary experiments in how to be human, says Stringer. H. erectus hung on in Asia until 30,000 years ago.he same advantages helped Homo sapiens outcompete another rival human, the Neanderthals, who died out about 30,000 years ago as the Ice Age limited available food supplies. Even 100,000 years ago, we've still got several human species on Earth and that's strange for us.