TY - RPRT TI - An ultrasound absorbing inflorescence zone enhances echo-acoustic contrast of bat-pollinated cactus flowers AU - Simon, R. AU - Matt, F. AU - Santillan, V. AU - Tschapka, M. AU - Tuttle, M. AU - Halfwerk, W. PY - 2019 DO - 10.1101/2019.12.28.890046 UR - https://www.biorxiv.org/content/10.1101/2019.12.28.890046v1 ID - 10.1101/2019.12.28.890046 ER -