Africa Biology

Her name was Henrietta Lacks, but scientists know her as HeLa. She was a poor Southern tobacco farmer who worked the same land as her slave ancestors, yet her cells - taken without her knowledge - became one of the most important tools in medicine: The first “immortal” human cells grown in culture, which are still alive today, though she has been dead for more than 60 years. HeLa cells were vital for developing the polio vaccine; uncovered secrets of cancer, viruses, and the atom bomb’s effects.

Mississippi, 1955: 14-year-old Emmett Till was murdered by a white mob after making flirtatious remarks to a white woman, Carolyn Bryant. Till's attackers were never convicted, but his lynching became one of the most notorious hate crimes in American history. It launched protests across the country, helped the NAACP gain thousands of members, and inspired famous activists like Rosa Parks to stand up and fight for equal rights for the first time.

Ernest Everett Just was not like other scientists of his time. He saw the whole, where others saw only parts. He noticed details others failed to see. He persisted in his research despite the discrimination and limitations imposed on him as an African American. His keen observations of sea creatures revealed new insights about egg cells and the origins of life.

Ivory's Ghosts is the first comprehensive, contemporary look at the world's most treasured organic material, ivory. Using a wide range of historical and firsthand reportage, John Frederick Walker tells the astonishing and sometimes savage story of ivory's enormous impact on both human history and that of its most important source: the majestic African elephant.

What are African elephants? How different are they from Asian elephants? What do they look like, and what do they like to do? What makes male and female elephants different from each other? These and more questions will be answered with the help of this audiobook. Elephants are big and somewhat scary, especially for young kids. But with this audiobook, kids will surely have fun learning about these big animals and will be taught to appreciate them a lot more.