Outer Space Can Change Brain Size

Human bodies were evolved for environments with gravity . This causes complications with long term space travel. Living in a microgravity environment can result in changes in the muscular and skeletal system. Muscle and bone mass can decrease being in space for long periods of time. Ocular structure can also be dramatically altered. What scientists have found out is that the brain can also undergo changes. The human brain can enlarge in space. Health complications can be possible threats to astronauts attempting to colonize other planets in the distant future. The study showed from MRIs from eleven astronauts showed these changes. The problem is related to body fluids and the absence of an oxygen atmosphere. There still are many unknown factors about what being in Outer Space can do to the human body. If there is going to be a mission to Mars, there should be a full assessment of likely health risks.   

The Discovery of The Adalatherium

A major discovery fossil discovery was made of an animal that was alive during the Late Cretaceous period. This animal is now known as the Adalatherium hui. The remains were found in Madagascar. The Adalatherium hui is classified as a gondwanatherian mammal. The age of the fossil remains are about 66 million years old. This animal is a strange addition to now extinct organisms. The size of  Adalatherium is much bigger compared to other mammals of the the Late Cretaceous. The skeleton was mostly complete and well preserved. Scientists have speculated that the evolution of this animal was related to its isolated environment. More mammals could have existed on the large continent of Gondwana. There are probably more animals that existed during various geological eras. The problem is that there fossils were not preserved for paleontologists to study. Adalatherium hui almost resembles a opossum. The classification can be debated, but it seems likely that it either was a rodent or marsupial.  The claws and feet indicate it could have been able to climb or burrow. Natural history  is rapidly expanding and there are greater possibilities for the discovery of  extinct  prehistoric animals.