Hummingbirds are a highly agile group of flyers capable of moving in all directions. In this work we measured Anna’s hummingbirds (Calypte anna) within a wind-tunnel in order to compare forward, still-air hovering and backward flight.
https://www.youtube.com/watch?v=iGSnkApMFtU&t=51sVideo of Eidolon helvum commuting flight (https://www.youtube.com/watch?v=iGSnkApMFtU)Fruit-bats tend to aggregate in their thousands and even millions in roosts spread throughout tropical Africa. In the evening the bats take off to…
Nir Sapir I am a professor at the Department of Evolutionary and Environmental Biology and the Institute of Evolution at the University of Haifa. I study bird, bat and…