- Lactation in whales and dolphins: evidence of divergence between baleen- and toothed-speciesO T Oftedal
Department of Zoological Research, National Zoological Park, Smithsonian Institution, Washington, DC 20008, USA
J Mammary Gland Biol Neoplasia 2:205-30. 1997..Additional research on cetacean mammary glands and their secretions is needed to understand the reproductive strategies of these fascinating animals...
- The evolution of milk secretion and its ancient originsO T Oftedal
Smithsonian Environmental Research Center, Smithsonian Institution, Edgewater, MD 21037, USA
Animal 6:355-68. 2012..Thus, the modern dairy industry is built upon a very old foundation, the cornerstones of which were laid even before dinosaurs ruled the earth in the Jurassic and Cretaceous periods...