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.
In the past, many different Homo species roamed the Earth (Homo erectus, Homo heidelbergensis, Homo neanderthalensis, etc.). As time went on, species started dying out until pretty much only humans and Neanderthals were left.And then the Neanderthals went the way of the Dodo leaving only humans.n a first, scientists have identified what may be a new species closely related to humans by using only the DNA from an old bone. If this holds up, it opens the way for a new way to study human evolutionary history.