Christoph Gustav Ernst Ahl (September 1, 1898–February 14, 1945) was a German zoologist. Germany, officially the Federal Republic of Germany ( ˈbʊndəsʁepuˌbliːk ˈdɔʏtʃlant is a Country in Central Europe. Zoology (from Greek ζῷον, zoon, "animal" + λόγος, " Logos " "knowledge" is the branch of
He was the director of the department of ichthyology and herpetology in the Museum in Berlin. Ichthyology (from Greek ἰχθυ ikhthu, "fish" and λόγος logos, "knowledge" is the branch of Zoology devoted to the study Herpetology (from Greek: ἑρπετόν herpeton, "creeping animal" and λόγος logos, "knowledge" is the branch of Zoology
He was also the editor in chief from of the review Das Aquarium from 1927 to 1934.