Africa: Life in Fossil Bones - What We Can Learn From Tiny Traces of Ancient Blood Chemicals: [The Conversation Africa] Blood tests are useful tools for doctors and scientific researchers: they can reveal a lot about a body's health. Usually, a blood sample is taken to get a picture of the large molecules that are present, such as cholesterols, lipids and proteins. This is called a metabolic profile. http://newsfeed.facilit8.network/TQd1hs #Africa #Fossils #BloodChemistry #HealthScience #AncientBlood