Karl von Frisch was an Austrian ethologist known for his groundbreaking research on animal behavior, particularly in honeybees. He was born on April 20, 1886, and received the Nobel Prize in Physiology or Medicine in 1973 for his work on the communication methods of bees. His studies revealed how bees use dances to convey information about food sources. Von Frisch's research significantly advanced the understanding of animal communication and sensory perception. He demonstrated that bees could perceive colors and polarized light, which helped them navigate and locate flowers. His contributions have had a lasting impact on the field of ethology and the study of animal behavior.