Calorie-Free Sweeteners. Stevia. Derived from the leaf of a South American shrub, this natural substance is up to 200 times as sweet as sugar. Stevia-based products like Truvia and Pure Via are made from a purified extract of the plant, called rebaudioside A (Reb A), and sugar alcohols.
The Cenozoic Era was the first era that saw humans evolve. Much of what the common population thinks of as evolution all happened in the Cenozoic Era. The first period of the Cenozoic Era is called the Tertiary Period.Recently, the Tertiary Period has been broken down into the Paleogene Period and Neogene Period.he modern human evolved and became the dominant species on Earth. Other mammals on Earth continued to diversify and branch off into various species. The same happened with marine species. There were a few extinctions over this time period as well, due to the changing climate.
Modern Human beings evolved in Africa from a variety of hominid species over a few million years. The first humans to leave the African continent were Homo erectus (upright man), who migrated northeast about 2 million years ago when present day deserts were grassland.o when modern humans decided to look west rather than east while pondering their future in a cold Central Asia they would have found Europe already occupied by Homo neanderthalensis, who had separated from the main evolutionary line some 500,000 years ago.