Frogs create highly resilient foam nests for their tadpoles to develop in. Biologist Denise Hissa is researching these foam nests to understand the durability of these structures. The potential applications for human life are vast, ranging from medications for respiratory diseases to cleaning products. Denise earned her doctorate in biotechnology from the Federal University of Ceará and completed part of her doctorate at the University of Graz in Austria. Fulfilling her childhood dream, she became a biologist. At 18, she took up surfing and has continued with the sport ever since. Today, it serves as her primary outlet for stress.