Karl Ernst Ritter von Baer Edler von Huthorn was a Baltic German scientist and explorer. Baer is also known in Russia as Karl Maksímovich Ber.
Baer was a naturalist, biologist, geologist, meteorologist, geographer, and a founding father of embryology. He was an explorer of European Russia and Scandinavia. He was a member of the Russian Academy of Sciences, a co-founder of the Russian Geographical Society, and the first president of the Russian Entomological Society, making him a distinguished Baltic German scientist.