https://frietsongalis.com/about daily 1.0 2025-10-09 https://images.squarespace-cdn.com/content/v1/5cb87c1670468070ca242005/c8bf7a72-1e69-43a4-b775-fc56d60facec/Frietson+Galis.jpg Frietson Galis, Evolutionary Developmental Biologist https://images.squarespace-cdn.com/content/v1/5cb87c1670468070ca242005/1565196923506-G8UVMGTXM0WT403W230Q/JvA-20140425-9330.jpg Frietson Galis, Evolutionary Developmental Biologist Photo by Joris van Alphen. https://images.squarespace-cdn.com/content/v1/5cb87c1670468070ca242005/1565200782222-F8P52RDFNWBRK4HBO9DD/why-five-fingers-fig-2.jpg Frietson Galis, Evolutionary Developmental Biologist Figures from Schmidt-Ehrenberg E.C. (1942), Die Embryogenese des Extremitätenskelettes der Säugetiere. https://images.squarespace-cdn.com/content/v1/5cb87c1670468070ca242005/1555619385030-CBMJPKM8NZG187EKDOSO/frietson-galis-claartje.jpg Frietson Galis, Evolutionary Developmental Biologist https://images.squarespace-cdn.com/content/v1/5cb87c1670468070ca242005/1616886997582-3OOGHDA47TM3YIURWQKB/EED-logo.png Frietson Galis, Evolutionary Developmental Biologist European Society for Evolutionary Developmental Biology (EED) https://images.squarespace-cdn.com/content/v1/5cb87c1670468070ca242005/1555595311600-ZOGHVD6X14FUIOZJ59KF/JvA-20130405-5931-2500px.jpg Frietson Galis, Evolutionary Developmental Biologist Dorcas gazelle (Gazella dorcas) skeleton, collection of Naturalis Biodiversity Center. Photo by Joris van Alphen. https://images.squarespace-cdn.com/content/v1/5cb87c1670468070ca242005/1556196062344-COJ7L6JFD8AW5T0YEXT7/Galis-dog-skulls.jpg Frietson Galis, Evolutionary Developmental Biologist https://images.squarespace-cdn.com/content/v1/5cb87c1670468070ca242005/1568119095284-XIV0LG3OMG787DZFP58H/halsrib+website+SVU92060V1+vierk.jpg Frietson Galis, Evolutionary Developmental Biologist Radiograph showing bilaterally small cervical ribs in fetus that died at ±39 weeks https://images.squarespace-cdn.com/content/v1/5cb87c1670468070ca242005/1565213679362-NBYKI6H8SH48FNEQ3WH8/JvA-20170129-37917.jpg Frietson Galis, Evolutionary Developmental Biologist Photo by Joris van Alphen. https://images.squarespace-cdn.com/content/v1/5cb87c1670468070ca242005/1555597216593-EZ7OL5GVYGLT5KG5CSEK/JvA-20130314-5754-2500px.jpg Frietson Galis, Evolutionary Developmental Biologist Photo by Joris van Alphen. https://images.squarespace-cdn.com/content/v1/5cb87c1670468070ca242005/1565198149435-J79377XQ2Y8RT2RSN5JC/JvA-20170129-37750.jpg Frietson Galis, Evolutionary Developmental Biologist Photo by Joris van Alphen. https://images.squarespace-cdn.com/content/v1/5cb87c1670468070ca242005/1565258172742-VOITP5HSBYBNSA2YFV3T/43be14ceeb26ac729dc5a8229309d717.jpg Frietson Galis, Evolutionary Developmental Biologist Bottom left: giraffe; top right: dugong. Drawings from Owen (1866). https://frietsongalis.com/publications daily 0.75 2025-10-09 https://images.squarespace-cdn.com/content/v1/5cb87c1670468070ca242005/1555597622890-VCNOZDRBD4Q54S5ED1CB/JvA-20130405-5962-7-composite-2500px.jpg Publications Juvenile Asian elephant Elephas maximus skeleton, collection of Naturalis Biodiversity Center. Photo by Joris van Alphen. https://frietsongalis.com/contact daily 0.75 2019-08-07 https://images.squarespace-cdn.com/content/v1/5cb87c1670468070ca242005/1555681279585-BB5HLKWVLUU0A0KZF9CO/image-asset.jpeg Contact Information Hairy babirusa Babyrousa babyrussa skeleton, collection of Naturalis Biodiversity Center. Photo by Joris van Alphen.