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.
Early Transitional Humans. Humans are members of the genus Homo. Modern people are Homo sapiens. However, we are not the only species of humans who have ever lived. There were earlier species of our genus that are now extinct.In the past, it was incorrectly assumed that human evolution was a relatively straightforward sequence of one species evolving into another.We now understand that there were times when several species of humans and even other hominins were alive.This complex pattern of evolution emerging from the fossil record has been aptly described as a luxuriantly branching bush on which all but one twig has died off. Modern humans are that last living twig.here were earlier species of our genus that are now extinct. In the past, it was incorrectly assumed that human evolution was a relatively straightforward sequence of one species evolving into another. We now understand that there were times when several species of humans and even other hominins were alive.