Humans

Hello everyone on this nice sunny Tuesday, this will be the last creature day for a bit till I find another book to consult, this weeks creature is us, humans.

The other creatures all had some level of indestructibility about them some would say humans have none, as we don't like extreme temperatures and we can't regrow body parts.

We can survive anywhere including the bottom of the sea or the South Pole and even outer space, this is because we have brains and hands that allow us to invent all kinds of protective survival enhancing, life saving inventions from the house we live in with mod cons and medicine to keep us well and even space suits.

We are so good at surviving that we have used up a lot of the Earth's natural resources and damaged it in many ways. Some feel we are headed to a big end others feel that we will find new ways to use technology to help the species to survive.

The earliest fossils of anatomically modern humans are from the Middle Paleolithic, about 200,000 years ago such as the Omo remains of Ethiopia, the fossils of Herto sometimes classified as Homo sapiens idaltu also from Ethiopia.

Almost 99% of the mass of the human body is made up of six elements: oxygen, carbon, hydrogen, nitrogen, calcium, and phosphorus. Only about 0.85% is composed of another five elements: potassium, sulfur, sodium, chlorine, and magnesium.

Human babies are thus born when their brains are less than 30 percent of adult brain size so that they can fit through the narrow passageway. They then continue development outside of the womb, with brain size nearly doubling in the first year