<p><strong>Fig. 5.23.</strong> (<strong>A</strong>) A Galápagos Pinta Island tortoise (<em>Chelonoidis nigra abingdoni</em>) named Lonesome George was the last member of his species when he died in 2012.</p>

Fig. 5.23. (A) A Galápagos Pinta Island tortoise (Chelonoidis nigra abingdoni) named Lonesome George was the last member of his species when he died in 2012.

Image courtesy of Arturo de Frias Marques, Wikimedia Commons