Nobel Prize - Did you know Jan and Nikolaas Tinbergen are the only siblings to both be awarded a Nobel Prize? In 1969, Jan Tinbergen, aged 66, received the first Prize in
Jan Tinbergen - Wikipedia
Understanding animal behavior: Niko Tinbergen's Four Questions - Global Animal Partnership
Niko Tinbergen Facts for Kids
Niko Tinbergen - Simple English Wikipedia, the free encyclopedia